can we center window's caption of text ?
I know of no window style or similar to do this automatically, but doing it by trial and error, padding the caption with spaces, should be fairly easy and should work for a dialog or an application window. Computing the number of spaces to add from the width of the window, caption, buttons, title bar icon, etc would be more difficult, particularly for a dialog.
You want to look into handling all or part of the WM_NCPAINT message.
I have no examples of how to do this, so I can't help any more than that.
Cheers,
Zooba :U
Quote from: zooba on June 13, 2009, 09:35:31 AM
You want to look into handling all or part of the WM_NCPAINT message.
The easiest way is to chose an empty caption, and then draw your own:
CASE WM_NCPAINT
invoke DefWindowProc, hWnd, uMsg, wParam, lParam
invoke GetWindowDC, hWnd
invoke TextOut, ...
invoke ReleaseDC, hWnd, ...
xor eax, eax
ret
Changing the default caption seems to be a complicated task. Here is an example. It's not perfect and the deactivation of the dialog box is an issue.
.IF uMsg==WM_NCPAINT
invoke DefWindowProc,hWnd,uMsg,wParam,lParam
invoke GetClientRect,hWnd,ADDR rc
mov rc.top,7
invoke GetWindowDC,hWnd
mov hDC,eax
invoke GetSysColor,COLOR_ACTIVECAPTION
invoke SetBkColor,hDC,eax
invoke GetSysColor,COLOR_CAPTIONTEXT
invoke SetTextColor,hDC,eax
invoke DrawText,hDC,ADDR capt,-1,ADDR rc,DT_CENTER
invoke ReleaseDC,hWnd,hDC
.ELSEIF uMsg==WM_NCACTIVATE
.IF !wParam
invoke DefWindowProc,hWnd,uMsg,wParam,lParam
invoke GetClientRect,hWnd,ADDR rc
mov rc.top,7
invoke GetWindowDC,hWnd
mov hDC,eax
invoke GetSysColor,COLOR_INACTIVECAPTION
invoke SetBkColor,hDC,eax
invoke GetSysColor,COLOR_INACTIVECAPTIONTEXT
invoke SetTextColor,hDC,eax
invoke DrawText,hDC,ADDR capt,-1,ADDR rc,DT_CENTER
invoke ReleaseDC,hWnd,hDC
mov eax,1
ret
.ENDIF
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Vortex, your example shows empty caption bar :'( . Tried to recompile - still no text (using Windows 7 x64)
Later > Tested on laptop with Win XP (x86) the example worked fine there.
Well still such solution should be avoided if you want your app be running on Win 7
Hi ramguru,
My development system is Windows XP SP3. Here is a nice example by Ernst Murphy :
Custom Window Captions (and shapes too) (http://ourworld.compuserve.com/homepages/ernies_world/cc.htm)
Hi ramguru,
I am sorry if the example didn't run on Windows 7 but I guess I am not too late to find another solution as this new operating system is not yet released officialy. ( the RTM version.) Windows 7 is a new area ( at least for me ) and it will take time to study this new OS.
The example runs on Windows XP but the problem is that the caption gets activated if another window hits the client area of the dialog box. This nice tutorial could be studied to find a solution :
http://www.catch22.net/tuts/custom-titlebar
Thanks for testing the application on Windows XP and Windows 7
Quote from: ramguru on June 14, 2009, 10:22:19 AM
Vortex, your example shows empty caption bar :'( . Tried to recompile - still no text (using Windows 7 x64)
Later > Tested on laptop with Win XP (x86) the example worked fine there.
Well still such solution should be avoided if you want your app be running on Win 7
Lingo had this problem with my editor on Vista. You might try his solution (http://www.masm32.com/board/index.php?topic=9044.msg81508#msg81508).