TFT 2.4" mcufriend with arduino mega 2560 and UTFT

hello, i have one arduino 2560 with a TFT 2.4 inch made by mcufriend : |500x173 and i would like to use it with UTFT library from

I test with demo "UTFT_Demo_320x240", i have add #define USE_UNO_SHIELD_ON_MEGA 1 because i use my shield is uno shield, i also modified the constructor : UTFT myGLCD(ILI9325C, A2, A1, A3, A4);

i can compile and transfert to the arduino but the screen stay always white.

i have test the MCUFRIEND_kbv v2.9 ( and it works fine but i would like to use a GUI library named AWind ( and this library need UTFT to work.

How i can do for the screen work ?