ASM Community

Hiya!

I've got a problem when trying to show a JPEG image to in a control. I'm using a resource file;

#include "C:\masm32\include\resource.h"

#define ID_BUTTON1 201
#define ID_BUTTON2 202
#define IDC_LIST1 203

SAC DIALOG DISCARDABLE  0, 0, 242, 241
STYLE DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | 
    WS_SYSMENU
CAPTION "Test"
FONT 8, "MS Sans Serif"
BEGIN
    DEFPUSHBUTTON   "&Connect",ID_BUTTON1,65,215,50,14
    PUSHBUTTON      "C&lose",ID_BUTTON2,123,215,50,14
    LISTBOX         IDC_LIST1,10,95,220,110,LBS_NOINTEGRALHEIGHT | 
                    WS_VSCROLL | WS_TABSTOP
    CONTROL         "",IDC_STATIC,"Static",SS_BITMAP | SS_CENTERIMAGE | 
                    SS_REALSIZEIMAGE,5,0,230,98
END

IDI_ICON1               ICON    DISCARDABLE     "test.ico"
2000                    IMAGE   DISCARDABLE     "test.jpg"

Now, the problem is that it won't paint the image to the control. I've searched forum, checked some examples and done my own fiddling, but it just won't work. This is a part of my "DlgProc" function code:

	; Window related variables
	LOCAL hBrush:DWORD
	LOCAL rect:RECT
	LOCAL logbrush:LOGBRUSH

	; Image related variables
	LOCAL dwImage:DWORD
	LOCAL hDC:HDC
	LOCAL hOld:DWORD
	LOCAL memDC:DWORD
	LOCAL ps:PAINTSTRUCT
	LOCAL pImage:DWORD	; Picturebox hWnd

	.IF uMsg==WM_CREATE
		; Load picture
		MOV	dwImage, FUNC(BitmapFromResource, dwInstance, 2000)
	;.ELSEIF uMsg==WM_SYSCOLORCHANGE
	;.ELSEIF uMsg==WM_SIZE
	.ELSEIF uMsg==WM_PAINT
		MOV	pImage, FUNC(GetDlgItem, hWnd, IDC_STATIC)

		MOV	hDC, FUNC(BeginPaint, hWnd, ADDR ps)
		INVOKE	GetClientRect, pImage, ADDR rect
		MOV	memDC, FUNC(CreateCompatibleDC, hDC)
		MOV	hOld, FUNC(SelectObject, memDC, dwImage)
                   		       ;1
		INVOKE	BitBlt, hDC, 0, 0, rect.right, rect.bottom, memDC, 0, 0, SRCCOPY

		INVOKE	SelectObject, hDC, hOld
		INVOKE	DeleteDC, memDC

		INVOKE	EndPaint, hWnd, ADDR ps
	.ELSEIF uMsg==WM_ERASEBKGND
		MOV	logbrush.lbStyle, BS_SOLID
		MOV	logbrush.lbColor, 0
		INVOKE	CreateBrushIndirect, ADDR logbrush
		MOV	hBrush, EAX
		INVOKE	GetClientRect, hWnd, ADDR rect
		INVOKE	FillRect, wParam, ADDR rect, hBrush	
		MOV	EAX, TRUE
		RET

And yes, I've included all necessary files. What's wrong? :sad:

Hi Vortex!

Great, I'll check it out. :)

Thanks a lot!

Hi Seb,

Your code snippet looks fine. Could you attach your zipped project to the forum?

Hi Seb,

You should remove this line below :

LOCAL hImage:DWORD

Keep in mind that local variables in procedures are not preserved.

Put your hImage variable in the uninitialized data section and your image will be displayed :


Notice that you should try to use the image functions from the library I posted to the forum. The functions from masm32.lib contains bugs.