Re: Use DLL for get Windows Message?
Usually you need a message dispatch
loop, your function steals all messages sent to any window in the thread
My application (another language without window gui) is running into
simple
windows. Correctly I have a window application but it's all I have from
window gui. I don't have menu and I don't have any common dialogs. So
common
dialogs are no problem, but menu!
You wrote: ...all messages sent to any window in the thread... but I
cannot
send any messages from DLL to my application or from my application to my
DLL
because I don't have the possibility to read this message into my
application. I have only possibility to use a DLL into my application.
Are you wanting the application to wait for the DLL to return a menu item,
like you would wait for scanf to return a line of text?
Usually event handlers are implemented using callbacks (push), but you can
certainly do pull as well.
int selection;
LRESULT CALLBACK WindowProc( HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam
){ if (uMsg == WM_COMMAND && lParam == NULL) selection =
LOWORD(wParam); return DefWindowProc(hwnd, uMsg, wParam, lParam);}int
GetMenuSelection()
{
BOOL bRet;selection = 0;
while( (bRet = GetMessage( &msg, hWnd, 0, 0 )) != 0)
{
if (bRet == -1)
{
// handle the error and possibly exit
}
else
{
TranslateMessage(&msg);
DispatchMessage(&msg); if (selection > 0) return selection;
// Processed a menu selection
}
} return -1; // User closed window}
Thanks