selfImDrawList handle on which this method operates.
aOrdered vertex or start point a in absolute screen coordinates.
bOrdered vertex or start point b in absolute screen coordinates.
cOrdered vertex or start point c in absolute screen coordinates.
dOrdered vertex or start point d in absolute screen coordinates.
uv_aTexture UV coordinates for the corresponding vertex.
uv_bTexture UV coordinates for the corresponding vertex.
uv_cTexture UV coordinates for the corresponding vertex.
uv_dTexture UV coordinates for the corresponding vertex.
colPacked ImU32 RGBA color; alpha controls opacity.
Write a quadrilateral with UVs into pre-reserved vertex and index space.