WinAPI: stop window getting too small
Author
hi Everyone,
Does anyone knows how to stop a WinApi window getting to small?
Many Thanks.
Author
Quote:Original post by ncsu121978
capture the WM_SIZE message and dont let the window size go below what you specify
i have tried something like this:
if(uMsg == WM_SIZE){ // Resize The Window if(HIWORD(lParam) < 100) return 0; if(LOWORD(lParam) < 100) return 0; ....Didnt worked.... Any idea what I'm doing wrong?
Thanks.
You should instead capture the WM_GETMINMAXINFO message.
Something like this:
For most messages, you should always return zero when you handle them. Only for a few messages, such as WM_CREATE for example, does the return value change much. If you look up the MSDN page for the message you can see what you're supposed to return.
For the WM_GETMINMAXINFO: http://msdn.microsoft.com/en-us/library/ms632626(VS.85).aspx
EDIT: If you visit that webpage, and select WM_SIZE in the left column instead, you will see that it says WM_SIZE is only sent after the window is resized, which is why it's not a good idea to use that message.
You might also want to check out the WM_SIZING message, which allows for controlling the size of the window.
Something like this:
case WM_GETMINMAXINFO: { LPMINMAXINFO mmi = reinterpret_cast<LPMINMAXINFO>(lParam); mmi->ptMinTrackSize.x = min_x_size; mmi->ptMinTrackSize.y = min_y_size;} return 0;For most messages, you should always return zero when you handle them. Only for a few messages, such as WM_CREATE for example, does the return value change much. If you look up the MSDN page for the message you can see what you're supposed to return.
For the WM_GETMINMAXINFO: http://msdn.microsoft.com/en-us/library/ms632626(VS.85).aspx
EDIT: If you visit that webpage, and select WM_SIZE in the left column instead, you will see that it says WM_SIZE is only sent after the window is resized, which is why it's not a good idea to use that message.
You might also want to check out the WM_SIZING message, which allows for controlling the size of the window.
Author
Quote:Original post by Erik Rufelt
You should instead capture the WM_GETMINMAXINFO message.
Something like this:case WM_GETMINMAXINFO: { LPMINMAXINFO mmi = reinterpret_cast<LPMINMAXINFO>(lParam); mmi->ptMinTrackSize.x = min_x_size; mmi->ptMinTrackSize.y = min_y_size;} return 0;
For most messages, you should always return zero when you handle them. Only for a few messages, such as WM_CREATE for example, does the return value change much. If you look up the MSDN page for the message you can see what you're supposed to return.
For the WM_GETMINMAXINFO: http://msdn.microsoft.com/en-us/library/ms632626(VS.85).aspx
EDIT: If you visit that webpage, and select WM_SIZE in the left column instead, you will see that it says WM_SIZE is only sent after the window is resized, which is why it's not a good idea to use that message.
You might also want to check out the WM_SIZING message, which allows for controlling the size of the window.
It works prefectly .... *rates Erik as extremly helpful*
Many Many Thanks.
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