Synopsis #

Header: fxcg/display.h
Syscall index: 0x0938
Function signature: void MsgBoxMoveWB(void* buffer, int x0, int y0, int x1, int y1, int direction)

Copies a rectangular area from VRAM to buffer, or restores it from buffer to VRAM, automatically incrementing the vertical coordinate values by 24 pixels, to account for the status bar.

Parameters #

• buffer - pointer to a buffer where to store (or load from) the VRAM contents. The buffer must be large enough to accommodate the data - if operating in full-color mode, it must have at least the amount of pixels to save times two (each pixel is two bytes). To help with the calculations, the buffer can be declared as an unsigned short array with size equal to the amount of pixels.
• x0, y0 - coordinates of the top-left point of the rectangular area. Note that y0 is incremented by 24 pixels by the syscall.
• x1, y1 - coordinates of the bottom-right point of the rectangular area. Note that y1 is incremented by 24 pixels by the syscall.
• direction - if 1, copy from VRAM to buffer; if 0, copy from buffer to VRAM.