The WM_WINDOWPOSCHANGING message is sent to a window whose size, position, or place in the Z order is about to change as a result of a call to the SetWindowPos function or another window-management function.
WM_WINDOWPOSCHANGING lpwp = (LPWINDOWPOS) lParam; // points to size and position data
If an application processes this message, it should return zero.
For a window with the WS_OVERLAPPED or WS_THICKFRAME style, the DefWindowProc function sends the WM_GETMINMAXINFO message to the window. This is done to validate the new size and position of the window and to enforce the CS_BYTEALIGNCLIENT and CS_BYTEALIGNWINDOW client styles. By not passing the WM_WINDOWPOSCHANGING message to the DefWindowProc function, an application can override these defaults.
While this message is being processed, modifying any of the values in WINDOWPOS affects the window’s new size, position, or place in the Z order. An application can prevent changes to the window by setting or clearing the appropriate bits in the flags member of WINDOWPOS.
DefWindowProc, EndDeferWindowPos, SetWindowPos, WINDOWPOS, WM_GETMINMAXINFO, WM_MOVE, WM_SIZE, WM_WINDOWPOSCHANGED
file: /Techref/os/win/api/win32/mess/src/msg28_23.htm, 2KB, , updated: 2000/4/7 11:20, local time: 2024/11/4 21:28,
3.144.4.177:LOG IN ©2024 PLEASE DON'T RIP! THIS SITE CLOSES OCT 28, 2024 SO LONG AND THANKS FOR ALL THE FISH!
|
©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions? <A HREF="http://massmind.org/techref/os/win/api/win32/mess/src/msg28_23.htm"> WM_WINDOWPOSCHANGING</A> |
Did you find what you needed? |
Welcome to massmind.org! |
Ashley Roll has put together a really nice little unit here. Leave off the MAX232 and keep these handy for the few times you need true RS232! |
.