C / C++ / MFC

Richard MacCutchan wrote:

And your message handlers could contain anything - we cannot see the code.

BOOL Dlg_OnInitDialog (HWND hwnd, HWND hwndFocus, LPARAM lParam)
{
	RECT rc;

	// Associate an icon with the dialog box.
	chSETDLGICONS(hwnd, IDI_DIRWALK, IDI_DIRWALK);
    
    // here is some code that I didn't got to, or have patience to write

	GetClientRect(hwnd, &rc);
	SetWindowPos(GetDlgItem(hwnd, IDC_TREE), NULL, 0, 0, rc.right, rc.bottom, SWP_NOZORDER);

	return(TRUE);
}

<pre lang="C++">

#define chINITSTRUCT(structure, fInitSize)                       \
        (ZeroMemory(&(structure), sizeof(structure)),             \
	fInitSize ? (*(int*) &(structure) = sizeof(structure)) : 0)

// Dialog Box Icon Setting Macro
// The call to SetClassLong is for Windows NT 3.51 or less.
// The WM_SETICON messages are for Windows NT 4.0 and Win 95
#define chSETDLGICONS(hwnd, idiLarge, idiSmall)                  \
		{                                                              \
		OSVERSIONINFO VerInfo;                                      \
		chINITSTRUCT(VerInfo, TRUE);                             \
		GetVersionEx(&VerInfo);                                  \
		if ((VerInfo.dwPlatformId == VER_PLATFORM_WIN32_NT) &&   \
			(VerInfo.dwMajorVersion <=3 &&                      \
			VerInfo.dwMinorVersion <= 51))                       \
		{                                                        \
			SetClassLong(hwnd, GCL_HICON, (LONG)                      \
				LoadIcon(GetWindowInstance(hwnd),                \
				MAKEINTRESOURCE(idiLarge)));                     \
		}                                                        \
		else                                                    \
		 {                                                       \
			 SendMessage(hwnd, WM_SETICON, TRUE, (LPARAM)        \
				 LoadIcon(GetWindowInstance(hwnd),                    \
				 MAKEINTRESOURCE(idiLarge)));                    \
			 SendMessage(hwnd, WM_SETICON, FALSE, (LPARAM)       \
				 LoadIcon(GetWindowInstance(hwnd),                    \
				 MAKEINTRESOURCE(idiSmall)));                    \
		}                                                        \
	}

coco243 wrote:

But the program dosen't reach the Dlg_OnInitDialog, I placed a breakpoint there.

#define chHANDLE_DLGMSG(hWnd, message, fn)                                         \
	case (message):                                                                \
return (SetDlgMsgResult(hwnd, uMsg, HANDLE_##message((hwnd),  (wParam), (lParam), (fn))))

INT_PTR CALLBACK DlgProc(
    HWND    hDlg,
    UINT    uMessage,
    WPARAM  wParam,
    LPARAM  lParam
)
{
    switch (uMessage)
    {
    case WM_INITDIALOG:
        return OnInitDialog(hDlg, (HWND)wParam, lParam); // calls the initialization function

    case WM_COMMAND:
        return OnCommand(hDlg, LOWORD(wParam), (HWND)lParam, HIWORD(wParam)); // handles any button etc. messages

    }

    return false; // default processing
}

//
// Walk_Directories.cpp
//

//#include "CmnHdr.h"
#include <windows.h>  // tipul BOOL este definit in windows.h
#include "resource.h"
#include "WindowsX.h"




BOOL Dlg_OnInitDialog (HWND hwnd, HWND hwndFocus, LPARAM lParam)
{
	RECT rc;

	// Associate an icon with the dialog box.
	//chSETDLGICONS(hwnd, IDI_DIRWALK, IDI_DIRWALK);
	 SendMessage(hwnd, WM_SETICON, TRUE, (LPARAM)LoadIcon(GetWindowInstance(hwnd),MAKEINTRESOURCE(IDI_DIRWALK)));                    
	 SendMessage(hwnd, WM_SETICON, FALSE, (LPARAM)LoadIcon(GetWindowInstance(hwnd),MAKEINTRESOURCE(IDI_DIRWALK)));                    

	GetClientRect(hwnd, &rc);
	SetWindowPos(GetDlgItem(hwnd, IDC_TREE), NULL, 0, 0, rc.right, rc.bottom, SWP_NOZORDER);

	return(TRUE);
}


void Dlg_OnSize ( HWND hwnd, UINT state, int cx, int cy)
{
	SetWindowPos(GetDlgItem(hwnd, IDC_TREE), NULL, 0, 0, cx, cy, SWP_NOZORDER);	
}


INT_PTR CALLBACK Dlg_Proc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	switch (uMsg)
	{
	case WM_INITDIALOG:
		SetDlgMsgResult(hwnd, uMsg, HANDLE_WM_INITDIALOG(hwnd, wParam, lParam, Dlg_OnInitDialog));
		//return Dlg_OnInitDialog(hwnd, (HWND)wParam, lParam);
    break;
	//chHANDLE_DLGMSG(hwnd, WM_INITDIALOG, Dlg_OnInitDialog);
	//chHANDLE_DLGMSG(hwnd, WM_SIZE, Dlg_OnSize);

	}

	return(FALSE);
}


int WINAPI WinMain(HINSTANCE hinstExe, HINSTANCE hinstPrev, LPSTR pszCmdLine, int nCmdShow)
{


DialogBox(hinstExe, MAKEINTRESOURCE(IDD_DIRWALK), NULL, Dlg_Proc);

return(0);
}

// Microsoft Visual C++ generated resource script.
//
#include "resource.h"

#define APSTUDIO_READONLY_SYMBOLS
/////////////////////////////////////////////////////////////////////////////
//
// Generated from the TEXTINCLUDE 2 resource.
//
#include "afxres.h"

/////////////////////////////////////////////////////////////////////////////
#undef APSTUDIO_READONLY_SYMBOLS

/////////////////////////////////////////////////////////////////////////////
// English (United States) resources

#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
LANGUAGE 9, 1

#ifdef APSTUDIO_INVOKED



// Icon
// Icon with the lowest ID value placed first to ensure
// application icon remains consistent on all systems.
IDI_DIRWALK ICON DISCARDABLE "DirWalk.Ico"



// Dialog
IDD_DIRWALK DIALOG DISCARDABLE 10, 18, 250, 250
STYLE WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_POPUP|
              WS_VISIBLE| WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | DS_MODALFRAME
CAPTION "Directory Walk"
FONT 8, "System"
BEGIN
       LISTBOX     IDC_TREE,0,0,0,0,NOT LBS_NOTIFY |
	                      LBX_NOINTEGRAL_HEIGHT | NOT WS_BORDER |
			   WS_VSCROLL | WS_HSCROLL | WS_GROUP |
			   WS_TABSTOP 
END




/////////////////////////////////////////////////////////////////////////////
//
// TEXTINCLUDE
//

1 TEXTINCLUDE  
BEGIN
    "resource.h\0"
END

2 TEXTINCLUDE  
BEGIN
    "#include ""afxres.h""\r\n"
    "\0"
END

3 TEXTINCLUDE  
BEGIN
    "\r\n"
    "\0"
END

#endif    // APSTUDIO_INVOKED

#endif    // English (United States) resources
/////////////////////////////////////////////////////////////////////////////



#ifndef APSTUDIO_INVOKED
/////////////////////////////////////////////////////////////////////////////
//
// Generated from the TEXTINCLUDE 3 resource.
//


/////////////////////////////////////////////////////////////////////////////
#endif    // not APSTUDIO_INVOKED

//{{NO_DEPENDENCIES}}
// Microsoft Visual C++ generated include file.
// Used by DirWalk.rc

#define IDI_DIRWALK                     400
#define IDC_TREE                        401
#define IDD_DIRWALK	                    402






// Next default values for new objects
// 
#ifdef APSTUDIO_INVOKED
#ifndef APSTUDIO_READONLY_SYMBOLS
#define _APS_NEXT_RESOURCE_VALUE        101
#define _APS_NEXT_COMMAND_VALUE         40001
#define _APS_NEXT_CONTROL_VALUE         1001
#define _APS_NEXT_SYMED_VALUE           101

#endif
#endif

SetDlgMsgResult(hwnd, uMsg, HANDLE_WM_INITDIALOG(hwnd, wParam, lParam, Dlg_OnInitDialog));

HANDLE_WM_INITDIALOG(hwnd, wParam, lParam, Dlg_OnInitDialog);
return TRUE;