Microsoft Office 2007 Enterprise Prohibit the appl

---- If your application requires a especially long time for numerous information processing, this time period lengthy enough to ensure that Windows does not detect consumer actions by the activation of the display screen saver, as soon as the display screen saver begins , your program is in fact slower, and this can significantly have an effect on the regular operation with the system. Is there a way to make the data processing program for any long time before making off the display screen safety? The answer is yes. Windows prior to beginning the screen saver will activate the application to deliver the present WM_SYSCOMMAND concept, which wParam parameter specifies the type of program commands to be executed, within this case, the value SC_SCREENSAVE. The trouble is methods to seize the news plan it? In C + + Builder might be utilized Tapplication OnMessage occasion handler class to deal with the news. Any software acquired immediately after the Windows concept will trigger Tapplication OnMessage class events,Microsoft Office 2007 Enterprise, by defining the occasion handler, it is possible to deliver for the application captures all Windows messages (certainly not included within the program together with the SendMessage perform to send the concept) .
---- OnMessage activities are outlined as follows:

typedef void__fastcall (__closure
* TMessageEvent) (tagMSG & Msg, bool & Handled);
__property TMessageEvent OnMessage =
read = FOnMessage, write = FOnMessage;


---- OnMessage which TMessageEvent kind is the sort of event that defines the process of processing a message, Msg parameters are given material about Windows messages Its structure is as follows:

typedef struct tagMSG
HWND hwnd;
UINT message;
WPARAM wParam;
LPARAM lParam;
DWORD time;
POINT pt ;


---- Handled parameter determines how the message for further processing, if a concept is received immediately after the Handled parameter is set to true, then the concept will not be further treatment, with this case is to remove the screen saver activated.

---- Start C + + Builder, create a project file, the header files to increase within the Private section from the member purpose CaptureMessage statement:

class TForm1: public Tform

__published:
private:
void __fastcall CaptureMessage (tagMSG & Msg, bool & Handled);
public:
__fastcall TForm1 (Tcomponent * Owner);
;


---- in. cpp file to add CaptureMessage definition:

void __fastcall TForm1:: CaptureMessage (tagMSG & Msg, bool & Handled)

if (Msg.message = = WM_SYSCOMMAND & & Msg.wParam = = SC_SCREENSAVE)
Handled = true; / / stop the screen saver starts
else
Handled = false; / / to the message The default processing



---- then perform as outlined CaptureMessage OnMessage an occasion processor, the main form add the subsequent code inside the OnCreate occasion handler :

void __fastcall TForm1:: FormCreate (Tobject * Sender)

Application-> OnMessage = CaptureMessage;



---- Press F9 to compile and run the program, you can advance the display saver wait time set to a value as small as possible to test the operation from the plan. You will find in the system is running, the screen saver will not be activated, close running programs and then wait to get a while, the screen saver would normally appear. The above code in C + + Builder3, win98 environment to run through the