Hide the Mouse Cursor

Hide Mouse Cursor by Registry Setting

You can hide the mouse cursor in the Display driver registry settings.

1. Open RegEdit by going to Start > Programs > ColibriTools > RegEdit

2. Make the following change:

• For Colibri T20/T30, Apalis T30

  [HKEY_LOCAL_MACHINE\SOFTWARE\NVIDIA Corporation\NVDDI]
  "HwCursor"=dword:0
  

• For Colibri PXAxxx, VFxx, and iMX7

  [HKEY_LOCAL_MACHINE\Drivers\Display\Colibri]
  "Cursor"=dword:0
  

• For Colibri iMX6, Apalis iMX6

  [HKEY_LOCAL_MACHINE\Drivers\Display]
  "Cursor"=dword:0
  

3. Save the registry using SaveReg in ColibriTools.

4. Restart the module.

Hide Mouse Curser Globally From an Application

You can call an escape code to globally enable/disable the mouse cursor.

 
#define ESCAPECODEBASE          100000
#define MOUSECURSOR             (ESCAPECODEBASE + 20)
 
DWORD old_cursor=0;
DWORD new_cursor=0;
 
// Get Cursor Status
ExtEscape(GetDC(NULL), MOUSECURSOR, 0, NULL, 4, (char*)&old_cursor);
 
// Disable Cursor
new_cursor=0;
ExtEscape(GetDC(NULL), MOUSECURSOR, 4, (char*)&new_cursor, 4, (char*)&old_cursor);
 
// Enable Cursor
new_cursor=1;
ExtEscape(GetDC(NULL), MOUSECURSOR, 4, (char*)&new_cursor, 4, (char*)&old_cursor);
 

Note: Using escape codes is not supported on iMX6

Hide the Mouse Cursor for one Application

There is an API call to hide the mouse cursor for only one application

{
    ShowCursor(FALSE);
}