la souris

Question

Bonne année a tous .

Ma question est simple .
On peut recuperer la position de la souris avec la fonction GetCursorPos() de façon simple.

Peut on recuperer le fait qu'un bouton de la souris soit appuyé sans passer par les messages windows du type WM_LBUTTONDOWN  ?
Mais par une fonction de type :    bool GetLButtonDown().

Si cette  fonction existe, c'est qu'il faut croire au pere noel.

merci

SnOOpss · Answer

Ca marche aussi avec 



SHORT GetAsyncKeyState(      
    int vKey
);



Soit pour toi GetAsyncKeyState( VK_LBUTTON ) pour le boutton gauche ou GetAsyncKeyState( VR_LBUTTON )


Mais cette fonction detecte le clik physique et non le clik logique comme 
WM_LBUTTONDOWN

xbabilone · Answer

sur un newsgroup j'ai trouvé : Pour intercepter les evenement souris ,il faut créer un hook local pour intercepter les messages a l'interieur d'une application. Ou un hook systeme pour intercepter tous les messages pour toutes les applications. La fonction est HHOOK SetWindowsHookEx( int idHook, HOOKPROC lpfn, HINSTANCE hMod, DWORD dwThreadId ); The SetWindowsHookEx function installs an application-defined hook procedure into a hook chain. You would install a hook procedure to monitor the system for certain types of events. These events are associated either with a specific thread or with all threads in the same desktop as the calling thread. Parameters * idHook : [in] Specifies the type of hook procedure to be installed. This parameter can be one of the following values.

Installs a hook procedure that will be called when the application's foreground thread is about to become idle. This hook is useful for performing low priority tasks during idle time. For more information, see the ForegroundIdleProc hook procedure. * : WH_GETMESSAGEInstalls a hook procedure that monitors messages posted to a message queue. For more information, see the GetMsgProc hook procedure. * : WH_JOURNALPLAYBACK; Installs a hook procedure that posts messages previously recorded by a WH_JOURNALRECORD hook procedure. For more information, see the JournalPlaybackProc hook procedure. * : WH_JOURNALRECORD; Installs a hook procedure that records input messages posted to the system message queue. This hook is useful for recording macros. For more information, see the JournalRecordProc hook procedure. * : WH_KEYBOARDInstalls a hook procedure that monitors keystroke messages. For more information, see the KeyboardProc hook procedure. * : WH_KEYBOARD_LL; Windows NT/2000/XP: Installs a hook procedure that monitors low-level keyboard input events. For more information, see the LowLevelKeyboardProc hook procedure. * : WH_MOUSE; Installs a hook procedure that monitors mouse messages. For more information, see the MouseProc hook procedure. * : WH_MOUSE_LL; Windows NT/2000/XP: Installs a hook procedure that monitors low-level mouse input events. For more information, see the LowLevelMouseProc hook procedure. * : WH_MSGFILTER; Installs a hook procedure that monitors messages generated as a result of an input event in a dialog box, message box, menu, or scroll bar. For more information, see the MessageProc hook procedure. * : WH_SHELLInstalls a hook procedure that receives notifications useful to shell applications. For more information, see the ShellProc hook procedure. * : WH_SYSMSGFILTER; Installs a hook procedure that monitors messages generated as a result of an input event in a dialog box, message box, menu, or scroll bar. The hook procedure monitors these messages for all applications in the same desktop as the calling thread. For more information, see the SysMsgProc hook procedure.
lpfn: [in] Pointer to the hook procedure. If the dwThreadId parameter is zero or specifies the identifier of a thread created by a different process, the lpfn parameter must point to a hook procedure in a DLL. Otherwise, lpfn can point to a hook procedure in the code associated with the current process.
hMod: [in] Handle to the DLL containing the hook procedure pointed to by the lpfn parameter. The hMod parameter must be set to NULL if the dwThreadId parameter specifies a thread created by the current process and if the hook procedure is within the code associated with the current process.
dwThreadId: [in] Specifies the identifier of the thread with which the hook procedure is to be associated. If this parameter is zero, the hook procedure is associated with all existing threads running in the same desktop as the calling thread.

Return Value If the function succeeds, the return value is the handle to the hook procedure. If the function fails, the return value is NULL. To get extended error information, call

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