Showing a Bmp file in new window. - Forums

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When i try to attach this code to a push button, it does not work. Am I invoking the code wrong? What code should i put to call the code under the pushbutton? The PushButton Code:


.ELSEIF eax==NCB_ShowBmp
Invoke ShowMain
mov hwndDlg,eax
.ENDIF

The window to show bmp file in: ShowBmpMain proto :DWORD,:DWORD,:DWORD,:DWORD .data bmp db "MyBmp.bmp",0 .data? hbmp HBITMAP ?


.code
ShowBmpMain proc hInst:HINSTANCE,hPrevInst:HINSTANCE,lpszArgs:LPSTR,nWinMode:DWORD
	LOCAL hwnd:HWND
	invoke CreateWindowEx, WS_EX_OVERLAPPEDWINDOW, ADDR ClassName,ADDR AppName,\
           WS_VISIBLE or WS_POPUP,CW_USEDEFAULT,\
           CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,HWND_DESKTOP,NULL,\
           hInst,NULL  
	mov   hwnd,eax
	invoke LoadImage, hInst, addr bmp, IMAGE_BITMAP, NULL, NULL, LR_LOADFROMFILE
	mov hbmp,eax
	invoke CreatePatternBrush, eax
	invoke ShowWindow, hwnd, SW_SHOWMAXIMIZED
	invoke UpdateWindow, hwnd
	invoke ShowProc
	ret
ShowBmpMain EndP

ShowBmpProc Proc hWnd:HWND, message:UINT, wParam:WPARAM, lParam:LPARAM
	.IF message==WM_DESTROY
		invoke DeleteObject, hbmp 
		invoke PostQuitMessage,NULL
        .ELSEIF message==WM_KEYDOWN || message==WM_LBUTTONDOWN || message==WM_RBUTTONDOWN || message==WM_MBUTTONDOWN
		invoke DeleteObject, hbmp 
		invoke PostQuitMessage,NULL
        .ELSE
		invoke DefWindowProc,hWnd,message,wParam,lParam		
		ret
	.ENDIF
	xor eax,eax
	ret
ShowBmpProc EndP


I know it's pretty simple, and i'm sure i left something minor out. But isn't that always the case :)

Thanks,
Nokturnal


    Posted on 2001-02-21 17:59:00 by Nokturnal


   
    Showing a Bmp file in new window.
    ahem... I see several problems.

You are invoking a procedure called ShowMain

.ELSEIF eax==NCB_ShowBmp
Invoke ShowMain
mov hwndDlg,eax
.ENDIF

But you define the procedure as ShowBmpMain (maybe a typo?)
Also ShowBmpMain requires 4 arguments and you haven't supplied any !

ShowBmpMain proc hInst:HINSTANCE,hPrevInst:HINSTANCE,lpszArgs:LPSTR,nWinMode;DWORD

You did the same thing later in ShowBmpMain when you invoke ShowProc. Should be ShowBmpProc (also requires 4 arguments).

ShowBmpProc Proc hWnd:HWND, message:UINT, wParam:WPARAM, lParam:LPARAM

Then you create a PatternBrush, but don't do anything with it.
You will need to "SelectObject" then maybe "FillRect" to see any visible results.
I would also suggest looking up Dialogs in the API/SDK.
    Posted on 2001-02-21 22:34:00 by anon

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