Hello all, im Mehh and this is my first post. Im also a rookie in programming and im making Multi Document Interface program from a MDI Example in DevC++. My problem is that i cannot change Font Size in MDI example and its so small that my friends cant even read it :S, if anyone can show me how to make it bigger i would be thankfull, Atleast Font size to be 12, Here is the source code im working on:
#include <windows.h>
#include <commctrl.h>
#include "mdi_unit.h"
#define ID_STATUSBAR 4997
#define ID_TOOLBAR 4998
#define ID_MDI_CLIENT 4999
#define ID_MDI_FIRSTCHILD 50000
#define IDC_CHILD_EDIT 2000
LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
LRESULT CALLBACK MDIChildWndProc(HWND hwnd, UINT Message, WPARAM wParam,
LPARAM lParam);
char g_szAppName[] = "MyMDIWindow";
char g_szChild[] = "MyMDIChild";
HINSTANCE g_hInst;
HWND g_hMDIClient, g_hStatusBar, g_hToolBar;
HWND g_hMainWindow;
BOOL LoadFile(HWND hEdit, LPSTR pszFileName)
{
HANDLE hFile;
BOOL bSuccess = FALSE;
hFile = CreateFile(pszFileName, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if(hFile != INVALID_HANDLE_VALUE)
{
DWORD dwFileSize;
dwFileSize = GetFileSize(hFile, NULL);
if(dwFileSize != 0xFFFFFFFF)
{
LPSTR pszFileText;
pszFileText = LPSTR(GlobalAlloc(GPTR, dwFileSize + 1));
if(pszFileText != NULL)
{
DWORD dwRead;
if(ReadFile(hFile, pszFileText, dwFileSize, &dwRead, NULL))
{
pszFileText[dwFileSize] = 0; // Null terminator
if(SetWindowText(hEdit, pszFileText))
bSuccess = TRUE; // It worked!
}
GlobalFree(pszFileText);
}
}
CloseHandle(hFile);
}
return bSuccess;
}
BOOL SaveFile(HWND hEdit, LPSTR pszFileName)
{
HANDLE hFile;
BOOL bSuccess = FALSE;
hFile = CreateFile(pszFileName, GENERIC_WRITE, 0, NULL,
CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
if(hFile != INVALID_HANDLE_VALUE)
{
DWORD dwTextLength;
dwTextLength = GetWindowTextLength(hEdit);
if(dwTextLength > 0)// No need to bother if there's no text.
{
LPSTR pszText;
pszText = LPSTR(GlobalAlloc(GPTR, dwTextLength + 1));
if(pszText != NULL)
{
if(GetWindowText(hEdit, pszText, dwTextLength + 1))
{
DWORD dwWritten;
if(WriteFile(hFile, pszText, dwTextLength, &dwWritten, NULL))
bSuccess = TRUE;
}
GlobalFree(pszText);
}
}
CloseHandle(hFile);
}
return bSuccess;
}
BOOL GetFileName(HWND hwnd, LPSTR pszFileName, BOOL bSave)
{
OPENFILENAME ofn;
ZeroMemory(&ofn, sizeof(ofn));
pszFileName[0] = 0;
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFilter = "Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0\0";
ofn.lpstrFile = pszFileName;
ofn.nMaxFile = MAX_PATH;
ofn.lpstrDefExt = "txt";
if(bSave)
{
ofn.Flags = OFN_EXPLORER | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY |
OFN_OVERWRITEPROMPT;
if(!GetSaveFileName(&ofn))
return FALSE;
}
else
{
ofn.Flags = OFN_EXPLORER | OFN_FILEMUSTEXIST | OFN_HIDEREADONLY;
if(!GetOpenFileName(&ofn))
return FALSE;
}
return TRUE;
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpszCmdParam, int nCmdShow)
{
MSG Msg;
WNDCLASSEX WndClassEx;
InitCommonControls();
g_hInst = hInstance;
WndClassEx.cbSize = sizeof(WNDCLASSEX);
WndClassEx.style = CS_HREDRAW | CS_VREDRAW;
WndClassEx.lpfnWndProc = WndProc;
WndClassEx.cbClsExtra = 0;
WndClassEx.cbWndExtra = 0;
WndClassEx.hInstance = hInstance;
WndClassEx.hIcon = LoadIcon(NULL, IDI_APPLICATION);
WndClassEx.hCursor = LoadCursor(NULL, IDC_ARROW);
WndClassEx.hbrBackground = (HBRUSH)(COLOR_3DSHADOW+1);
WndClassEx.lpszMenuName = "MAIN";
WndClassEx.lpszClassName = g_szAppName;
WndClassEx.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
if(!RegisterClassEx(&WndClassEx))
{
MessageBox(0, "Could Not Register Window", "Oh Oh...",
MB_ICONEXCLAMATION | MB_OK);
return -1;
}
WndClassEx.lpfnWndProc = MDIChildWndProc;
WndClassEx.lpszMenuName = NULL;
WndClassEx.lpszClassName = g_szChild;
WndClassEx.hbrBackground = (HBRUSH)(COLOR_3DFACE+1);
if(!RegisterClassEx(&WndClassEx))
{
MessageBox(0, "Could Not Register Child Window", "Oh Oh...",
MB_ICONEXCLAMATION | MB_OK);
return -1;
}
g_hMainWindow = CreateWindowEx(WS_EX_APPWINDOW, g_szAppName,
"MDI File Editor", WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
0, 0, hInstance, NULL);
if (g_hMainWindow == NULL){
MessageBox(0, "No Window", "Oh Oh...", MB_ICONEXCLAMATION | MB_OK);
return -1;
}
ShowWindow(g_hMainWindow, nCmdShow);
UpdateWindow(g_hMainWindow);
while(GetMessage(&Msg, NULL, 0, 0))
{
if (!TranslateMDISysAccel(g_hMDIClient, &Msg))
{
TranslateMessage(&Msg);
DispatchMessage(&Msg);
}
}
return Msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{
switch(Message)
{
case WM_CREATE:
{
CLIENTCREATESTRUCT ccs;
int iStatusWidths[] = {200, 300, -1};
TBADDBITMAP tbab;
TBBUTTON tbb[9];
// Find window menu where children will be listed
ccs.hWindowMenu = GetSubMenu(GetMenu(hwnd), 2);
ccs.idFirstChild = ID_MDI_FIRSTCHILD;
g_hMDIClient = CreateWindowEx(WS_EX_CLIENTEDGE, "mdiclient", NULL,
WS_CHILD | WS_CLIPCHILDREN | WS_VSCROLL | WS_HSCROLL,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
hwnd, (HMENU)ID_MDI_CLIENT, g_hInst, (LPVOID)&ccs);
ShowWindow(g_hMDIClient, SW_SHOW);
g_hStatusBar = CreateWindowEx(0, STATUSCLASSNAME, NULL,
WS_CHILD | WS_VISIBLE | SBARS_SIZEGRIP, 0, 0, 0, 0,
hwnd, (HMENU)ID_STATUSBAR, g_hInst, NULL);
SendMessage(g_hStatusBar, SB_SETPARTS, 3, (LPARAM)iStatusWidths);
SendMessage(g_hStatusBar, SB_SETTEXT, 2, (LPARAM)"Toolbar & Statusbar Example");
g_hToolBar = CreateWindowEx(0, TOOLBARCLASSNAME, NULL,
WS_CHILD | WS_VISIBLE, 0, 0, 0, 0,
hwnd, (HMENU)ID_TOOLBAR, g_hInst, NULL);
// Send the TB_BUTTONSTRUCTSIZE message, which is required for
// backward compatibility.
SendMessage(g_hToolBar, TB_BUTTONSTRUCTSIZE, (WPARAM)sizeof(TBBUTTON), 0);
tbab.hInst = HINST_COMMCTRL;
tbab.nID = IDB_STD_SMALL_COLOR;
SendMessage(g_hToolBar, TB_ADDBITMAP, 0, (LPARAM)&tbab);
ZeroMemory(tbb, sizeof(tbb));
tbb[0].iBitmap = STD_FILENEW;
tbb[0].fsState = TBSTATE_ENABLED;
tbb[0].fsStyle = TBSTYLE_BUTTON;
tbb[0].idCommand = CM_FILE_NEW;
tbb[1].iBitmap = STD_FILEOPEN;
tbb[1].fsState = TBSTATE_ENABLED;
tbb[1].fsStyle = TBSTYLE_BUTTON;
tbb[1].idCommand = CM_FILE_OPEN;
tbb[2].iBitmap = STD_FILESAVE;
tbb[2].fsStyle = TBSTYLE_BUTTON;
tbb[2].idCommand = CM_FILE_SAVE;
tbb[3].fsStyle = TBSTYLE_SEP;
tbb[4].iBitmap = STD_CUT;
tbb[4].fsStyle = TBSTYLE_BUTTON;
tbb[4].idCommand = CM_EDIT_CUT;
tbb[5].iBitmap = STD_COPY;
tbb[5].fsStyle = TBSTYLE_BUTTON;
tbb[5].idCommand = CM_EDIT_COPY;
tbb[6].iBitmap = STD_PASTE;
tbb[6].fsStyle = TBSTYLE_BUTTON;
tbb[6].idCommand = CM_EDIT_PASTE;
tbb[7].fsStyle = TBSTYLE_SEP;
tbb[8].iBitmap = STD_UNDO;
tbb[8].fsStyle = TBSTYLE_BUTTON;
tbb[8].idCommand = CM_EDIT_UNDO;
SendMessage(g_hToolBar, TB_ADDBUTTONS, 9, (LPARAM)&tbb);
return 0;
}
case WM_COMMAND:
{
switch(LOWORD(wParam))
{
case CM_FILE_EXIT:
PostMessage(hwnd, WM_CLOSE, 0, 0);
break;
case CM_FILE_NEW:
{
MDICREATESTRUCT mcs;
HWND hChild;
mcs.szTitle = "[Untitled]";
mcs.szClass = g_szChild;
mcs.hOwner = g_hInst;
mcs.x = mcs.cx = CW_USEDEFAULT;
mcs.y = mcs.cy = CW_USEDEFAULT;
mcs.style = MDIS_ALLCHILDSTYLES;
hChild = (HWND)SendMessage(g_hMDIClient, WM_MDICREATE,
0, (LONG)&mcs);
if(!hChild)
{
MessageBox(hwnd, "MDI Child creation failed.", "Oh Oh...",
MB_ICONEXCLAMATION | MB_OK);
}
}
break;
case CM_FILE_OPEN:
{
MDICREATESTRUCT mcs;
HWND hChild;
char szFileName[MAX_PATH];
if(!GetFileName(hwnd, szFileName, FALSE))
break;
mcs.szTitle = szFileName;
mcs.szClass = g_szChild;
mcs.hOwner = g_hInst;
mcs.x = mcs.cx = CW_USEDEFAULT;
mcs.y = mcs.cy = CW_USEDEFAULT;
mcs.style = MDIS_ALLCHILDSTYLES;
hChild = (HWND)SendMessage(g_hMDIClient, WM_MDICREATE,
0, (LONG)&mcs);
if(!hChild)
{
MessageBox(hwnd, "MDI Child creation failed.", "Oh Oh...",
MB_ICONEXCLAMATION | MB_OK);
}
}
break;
case CM_WINDOW_TILEHORZ:
PostMessage(g_hMDIClient, WM_MDITILE, MDITILE_HORIZONTAL, 0);
break;
case CM_WINDOW_TILEVERT:
PostMessage(g_hMDIClient, WM_MDITILE, MDITILE_VERTICAL, 0);
break;
case CM_WINDOW_CASCADE:
PostMessage(g_hMDIClient, WM_MDICASCADE, 0, 0);
break;
case CM_WINDOW_ARRANGE:
PostMessage(g_hMDIClient, WM_MDIICONARRANGE, 0, 0);
break;
default:
{
if(LOWORD(wParam) >= ID_MDI_FIRSTCHILD){
DefFrameProc(hwnd, g_hMDIClient, Message, wParam, lParam);
}
else {
HWND hChild;
hChild = (HWND)SendMessage(g_hMDIClient, WM_MDIGETACTIVE,0,0);
if(hChild){
SendMessage(hChild, WM_COMMAND, wParam, lParam);
}
}
}
}
}
break;
case WM_SIZE:
{
RECT rectClient, rectStatus, rectTool;
UINT uToolHeight, uStatusHeight, uClientAlreaHeight;
SendMessage(g_hToolBar, TB_AUTOSIZE, 0, 0);
SendMessage(g_hStatusBar, WM_SIZE, 0, 0);
GetClientRect(hwnd, &rectClient);
GetWindowRect(g_hStatusBar, &rectStatus);
GetWindowRect(g_hToolBar, &rectTool);
uToolHeight = rectTool.bottom - rectTool.top;
uStatusHeight = rectStatus.bottom - rectStatus.top;
uClientAlreaHeight = rectClient.bottom;
MoveWindow(g_hMDIClient, 0, uToolHeight, rectClient.right, uClientAlreaHeight - uStatusHeight - uToolHeight, TRUE);
}
break;
case WM_CLOSE:
DestroyWindow(hwnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefFrameProc(hwnd, g_hMDIClient, Message, wParam, lParam);
}
return 0;
}
LRESULT CALLBACK MDIChildWndProc(HWND hwnd, UINT Message, WPARAM wParam,
LPARAM lParam)
{
switch(Message)
{
case WM_CREATE:
{
char szFileName[MAX_PATH];
HWND hEdit;
hEdit = CreateWindowEx(WS_EX_CLIENTEDGE, "EDIT", "",
WS_CHILD | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL | ES_MULTILINE |
ES_WANTRETURN,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
hwnd, (HMENU)IDC_CHILD_EDIT, g_hInst, NULL);
SendMessage(hEdit, WM_SETFONT,
(WPARAM)GetStockObject(DEFAULT_GUI_FONT), MAKELPARAM(TRUE, 0));
GetWindowText(hwnd, szFileName, MAX_PATH);
if(*szFileName != '[')
{
if(!LoadFile(hEdit, szFileName))
{
MessageBox(hwnd, "Couldn't Load File.", "Error.",
MB_OK | MB_ICONEXCLAMATION);
return -1; //cancel window creation
}
}
}
break;
case WM_SIZE:
if(wParam != SIZE_MINIMIZED)
MoveWindow(GetDlgItem(hwnd, IDC_CHILD_EDIT), 0, 0, LOWORD(lParam),
HIWORD(lParam), TRUE);
break;
case WM_MDIACTIVATE:
{
HMENU hMenu, hFileMenu;
BOOL EnableFlag;
char szFileName[MAX_PATH];
hMenu = GetMenu(g_hMainWindow);
if(hwnd == (HWND)lParam){ //being activated
EnableFlag = TRUE;
}
else{
EnableFlag = FALSE; //being de-activated
}
EnableMenuItem(hMenu, 1, MF_BYPOSITION | (EnableFlag ? MF_ENABLED : MF_GRAYED));
EnableMenuItem(hMenu, 2, MF_BYPOSITION | (EnableFlag ? MF_ENABLED : MF_GRAYED));
hFileMenu = GetSubMenu(hMenu, 0);
EnableMenuItem(hFileMenu, CM_FILE_SAVE, MF_BYCOMMAND | (EnableFlag ? MF_ENABLED : MF_GRAYED));
EnableMenuItem(hFileMenu, CM_FILE_SAVEAS, MF_BYCOMMAND | (EnableFlag ? MF_ENABLED : MF_GRAYED));
DrawMenuBar(g_hMainWindow);
SendMessage(g_hToolBar, TB_ENABLEBUTTON, CM_FILE_SAVE, MAKELONG(EnableFlag, 0));
SendMessage(g_hToolBar, TB_ENABLEBUTTON, CM_EDIT_UNDO, MAKELONG(EnableFlag, 0));
SendMessage(g_hToolBar, TB_ENABLEBUTTON, CM_EDIT_CUT, MAKELONG(EnableFlag, 0));
SendMessage(g_hToolBar, TB_ENABLEBUTTON, CM_EDIT_COPY, MAKELONG(EnableFlag, 0));
SendMessage(g_hToolBar, TB_ENABLEBUTTON, CM_EDIT_PASTE, MAKELONG(EnableFlag, 0));
GetWindowText(hwnd, szFileName, MAX_PATH);
SendMessage(g_hStatusBar, SB_SETTEXT, 0, (LPARAM)(EnableFlag ? szFileName : ""));
}
break;
case WM_SETFOCUS:
SetFocus(GetDlgItem(hwnd, IDC_CHILD_EDIT));
break;
case WM_COMMAND:
switch(LOWORD(wParam))
{
case CM_FILE_SAVE:
{
char szFileName[MAX_PATH];
GetWindowText(hwnd, szFileName, MAX_PATH);
if(*szFileName != '[')
{
if(!SaveFile(GetDlgItem(hwnd, IDC_CHILD_EDIT), szFileName))
{
MessageBox(hwnd, "Couldn't Save File.", "Error.",
MB_OK | MB_ICONEXCLAMATION);
return 0;
}
}
else
{
PostMessage(hwnd, WM_COMMAND,
MAKEWPARAM(CM_FILE_SAVEAS, 0), 0);
}
}
return 0;
case CM_FILE_SAVEAS:
{
char szFileName[MAX_PATH];
if(GetFileName(hwnd, szFileName, TRUE))
{
if(!SaveFile(GetDlgItem(hwnd, IDC_CHILD_EDIT), szFileName))
{
MessageBox(hwnd, "Couldn't Save File.", "Error.",
MB_OK | MB_ICONEXCLAMATION);
return 0;
}
else
{
SetWindowText(hwnd, szFileName);
}
}
}
return 0;
case CM_EDIT_UNDO:
SendDlgItemMessage(hwnd, IDC_CHILD_EDIT, EM_UNDO, 0, 0);
break;
case CM_EDIT_CUT:
SendDlgItemMessage(hwnd, IDC_CHILD_EDIT, WM_CUT, 0, 0);
break;
case CM_EDIT_COPY:
SendDlgItemMessage(hwnd, IDC_CHILD_EDIT, WM_COPY, 0, 0);
break;
case CM_EDIT_PASTE:
SendDlgItemMessage(hwnd, IDC_CHILD_EDIT, WM_PASTE, 0, 0);
break;
}
return 0;
}
return DefMDIChildProc(hwnd, Message, wParam, lParam);
}regards,
Mehh
