Sends a Windows message to the application.
function SendAppMessage(Msg: Cardinal; WParam: Longint; LParam: Longint): Longint;
Longint SendAppMessage(unsigned Msg, Longint WParam, Longint LParam);
Controls
Call SendAppMessage to send a Windows message to the global application object.
Msg represents the Windows Message code.
WParam represents the WParam of the message. Its interpretation depends on the value of Msg.
LParam represents the LParam of the message. Its interpretation depends on the value of Msg.
SendAppMessage returns the result provided by the application's window procedure. If the application did not handle the message, SendAppMessage returns 0.
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