Add more copy bitmap

bitmap/goBitmap.h

@@ -54,6 +54,10 @@ bool bitmap_copy_to_pboard(MMBitmapRef bitmap){
 	return true;
 }
 
+MMBitmapRef bitmap_deepcopy(MMBitmapRef bitmap){
+	return bitmap == NULL ? NULL : copyMMBitmap(bitmap);
+}
+
 MMPoint aFindBitmap(MMBitmapRef bit_map, MMRect rect){
 	// MMRect rect;
 	// rect.size.width = 10;

robotgo.go

@@ -680,6 +680,12 @@ func CopyBitpb(bitmap C.MMBitmapRef) bool {
 	return gbool
 }
 
+// DeepCopyBit deep copy bitmap
+func DeepCopyBit(bitmap C.MMBitmapRef) C.MMBitmapRef {
+	bit := C.bitmap_deepcopy(bitmap)
+	return bit
+}
+
 /*
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