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First download Embedded Resource Editor GUI from www.st.com, it will allow you to convert BMP, jpg and other to char array, and it will generate code.

Next you have to have paint bmp function, (you must know converted picture dimensions, like 320x240,  (you must resize jpg or any other file so it can fit inside screen !!!!)
After that, copy generated file to bmp.h, include that to main.c, and call paint function from LCD library

as example, i have SSD1289 with void LCD_WriteBMP(uint8_t Xpos, uint16_t Ypos, uint8_t Height, uint16_t Width, uint8_t *bitmap) function
so in main.c, i call:

LCD_WriteBMP(0,0,320,240,(u8) * Name_of_Char_array_generated_by_gui_aka_ImageBuffer);

Questions ?

(mark helpful or correct answer if it helped)

My screen is SSD2119 so does this line: void LCD_WriteBMP(uint8_t Xpos, uint16_t Ypos, uint8_t Height, uint16_t Width, uint8_t *bitmap)  still works? Or that is from a ready made h file? Also:Name_of_Char_array_generated_by_gui_aka_ImageBuffer does that mean the file name generated by that program?

Yes, it should work.
in GUI it will create array called const unsigned char ImageBuffer[], you can use default, or rename to mach your picture name.

1) Copy all code generated by program to file picture.h

2) #include <picture.h>  inside your main.c file

3) Make sure you init your screen, so it can display something, test it with LCD_Clear(0xFF00);

4) paint picture by calling : LCD_WriteBMP(0, 0, X, Y, (uint8_t*) ImageBuffer); // note that X and Y must be same, or lower than resollution of your screen, so max_x is 320, max_y 240 if i remember resolution corecly , test first with 200x200 pixels picture, so crop it, resize it, convert it to char array and so on.

5) enjoy

I will try this hopefully by today will get back to you with the results Thanks for your time

I will try this hopefully by today will get back to you with the results Thanks for your time