User Input Queue (Compact 2013)
3/26/2014
The user input queue module maintains the user input queue, which holds keyboard, mouse and touch events. The touch proxy driver passes touch contact data to function UserInputQueue_PutTouchEventsExport (in userin.cpp), which places it on the user input queue.
The user input thread monitors the input queue. It takes events from the queue one at a time and calls the touch component or keyboard component to do the rest of the processing and delivery. Function UserInput_Initialize calls CreateThread to create the thread, specifying function UserInputThread as the starting address.
The object file for the module is Uibase.lib. The following table describes the module functionality.
Object file name |
Description |
|---|---|
Uibase.lib |
Contains function UserInputQueue_PutTouchEventsExport, which receives touch data from the driver. Function Touch_Initialize passes a pointer to this function to function TouchPanelEnableEx of the touch proxy driver. Provides function UserInputThread to monitor the input queue for events. UserInputThread calls other functions according to the type of event:
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