Checkbox / How do I get the width/height of it?

Sebastian Pipping

I have a button with BS_CHECKBOX style and text. I want to center the checkbox with my dialog so I need to get the "real" width of the control (Checkbox + gap + text = full width). I know how to get the width of the text part but how do I get the width and height of the checkbox itself? I looked at GetSystemMetrics and SystemParametersInfo but didn't find any. Any ideas where to look at? The width of the gap between is also needed. I need a plain WinAPI solution that works on all versions of Windows (not XP only). Thanks in advance, Sebastian ------------------------------------------- My website: http://www.hartwork.org -- modified at 1:03 Sunday 5th March, 2006

Sebastian Pipping

More searching taught me that SM_CXMENUCHECK and SM_CXMENUSIZE seem to be what I was looking for. So my new problem is how do I tellGetTextExtentPoint32 to work with the new font and not the default one. Here's my code:

const TCHAR * const szNeverAgain = TEXT( "Do not ask again" );

SendMessage( hNeverAgain, WM_SETFONT, ( WPARAM )GetStockObject( DEFAULT_GUI_FONT ), ( LPARAM )TRUE );

const HDC hdc = GetDC( hNeverAgain );
SIZE size;
GetTextExtentPoint32( hdc, szNeverAgain, _tcslen( szNeverAgain ), &size );
ReleaseDC( hNeverAgain, hdc );

size.cx is always the width for the old font. I need the new one - any ideas? ------------------------------------------- My website: http://www.hartwork.org

Stephen Hewitt

Select a font into the DC before calling GetTextExtentPoint32. e.g.

const TCHAR * const szNeverAgain = TEXT( "Do not ask again" );

SendMessage( hNeverAgain, WM_SETFONT, ( WPARAM )GetStockObject( DEFAULT_GUI_FONT ), ( LPARAM )TRUE );

HDC hdc = GetDC( hNeverAgain );
HFONT hOldFont = (HFONT)SelectObject(hdc, hYourFont);
SIZE size;
GetTextExtentPoint32( hdc, szNeverAgain, _tcslen( szNeverAgain ), &size );
SelectObject(hdc, hOldFont);
ReleaseDC( hNeverAgain, hdc );

Steve

Sebastian Pipping

This is it! It works! I'm so happy - Thank you very much! Best regards, Sebastian ------------------------------------------- My website: http://www.hartwork.org

Sebastian Pipping

Btw in case you are the author of SpeedLoad - good work! :-D ------------------------------------------- My website: http://www.hartwork.org

Stephen Hewitt

Yeah I'm to blame for SpeedLoad. Thanks for your kind words. Steve

janisha

Create a variable for the check box. And call GetWindowRect :omg: Mythili

Sebastian Pipping

No. The problem is the width can be much more than the text in it actually needs. If I want to center the checkbox I need the width of what the user sees, not the width of the window rect. Best regards, Sebastian ------------------------------------------- My website: http://www.hartwork.org