WM_GETMINMAXINFO message
Applies to: desktop apps only
Sent to a window when the size or position of the window is about to change. An application can use this message to override the window's default maximized size and position, or its default minimum or maximum tracking size.
A window receives this message through its WindowProc function.
#define WM_GETMINMAXINFO 0x0024
Parameters
- wParam
-
This parameter is not used.
- lParam
-
A pointer to a MINMAXINFO structure that contains the default maximized position and dimensions, and the default minimum and maximum tracking sizes. An application can override the defaults by setting the members of this structure.
Return value
Type: LRESULT
If an application processes this message, it should return zero.
Remarks
The maximum tracking size is the largest window size that can be produced by using the borders to size the window. The minimum tracking size is the smallest window size that can be produced by using the borders to size the window.
Requirements
|
Minimum supported client | Windows 2000 Professional |
|---|---|
|
Minimum supported server | Windows 2000 Server |
|
Header |
|
See also
- Reference
- MoveWindow
- SetWindowPos
- MINMAXINFO
- Conceptual
- Windows
Send comments about this topic to Microsoft
Build date: 2/3/2012
Hi,
Windows 7 ignores the ptMaxPosition I specifies when either x or y are negative values or both are 0. It works when both are positive. Is there a way to fix? am I doing something wrong? Here is a snippet:
--------
case WM_NCCALCSIZE:
return true ;
case WM_GETMINMAXINFO:
MINMAXINFO * minMaxInfo = ( MINMAXINFO *)( message -> lParam );
POINTpoint;
point.x=-10;
point.y=-10;
minMaxInfo->ptMaxPosition=point;
*result=0;
returnfalse;
--------------------
The position I set is ignored.
- 5/31/2012
- dzimiwine
- 1/26/2009
- XenonOfArcticus
- 1/26/2009
- XenonOfArcticus
