Return ValueNone.RemarksThere are five ranges of message numbers.Expand table RangeDescription 0 through WM_USER –1 Messages reserved for use by the system. WM_USER through 0x7FFF Integer messages for use by private window classes. WM_APP through 0xBFFF Messages available for use by ...
#include "WindowsMsgValueDefine.h" int main(int argc, char* argv[]) { long bInputValid = 1; unsigned short wMsgValue = 0; do { printf("please input windows msg value(0~1023, other value quit program):"); scanf("%hd", &wMsgValue); bInputValid = ((wMsgValue >= 0) && (wM...
Used to define private messages for use by private window classes, usually of the form WM\_USER+x, where x is an integer value.
return FALSE; } “I send theMDM_SETITEMCOUNTmessage to my dialog, but the value doesn’t stick. At random times, the value resets back to zero.” As we saw some time ago,window messages in theWM_USERrange belong to the window class. In the case of a dialog box, the window...
Return value Remarks Requirements See also Posted when the user presses either XBUTTON1 or XBUTTON2 while the cursor is in the client area of a window. If the mouse is not captured, the message is posted to the window beneath the cursor. Otherwise, the message is posted to the windo...
Return value Requirements See also Sent to a window that the user is moving. By processing this message, an application can monitor the position of the drag rectangle and, if needed, change its position.A window receives this message through its WindowProc function.C++...
ValueSignificado INPUTLANGCHANGE_BACKWARD 0x0004 Se usó una clave activa para elegir la configuración regional de entrada anterior en la lista instalada de configuraciones regionales de entrada. Esta marca no se puede usar con la marca INPUTLANGCHANGE_FORWARD. INPUTLANGCHANGE_FORWARD 0x0002 Se us...
向非文本静态控件(如静态位图或静态图标控件)发送WM_GETTEXT消息不会返回字符串值。 相反,它返回零。 此外,在早期版本的 Windows 中,应用程序可以将WM_GETTEXT消息发送到非文本静态控件,以检索控件的 ID。 若要检索控件的 ID,应用程序可以使用GetWindowLong传递GWL_ID作为索引值,或使用GWLP_ID传递GetWindowLongPtr。
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} return FALSE; } “I send theMDM_SETITEMCOUNTmessage to my dialog, but the value doesn’t stick. At random times, the value resets back to zero.” As we saw some time ago,window messages in theWM_USERrange belong to the window class. In the case of a dialog box, the wi...