Bug in BT_DrawTextEx?
Posted: Wed May 25, 2016 5:08 am
I found some weird behavior of DrawTextEx:
When a BT_DrawText is used before DrawTextEx with BT_Text_Center alignment, the alignment is carried over to the next BT_DrawTextEx even though we give BT_Text_Left
Consider this example:
Try commenting the line and run.
When a BT_DrawText is used before DrawTextEx with BT_Text_Center alignment, the alignment is carried over to the next BT_DrawTextEx even though we give BT_Text_Left
Consider this example:
Code: Select all
#include <hmg.ch>
Function Main
define window x at 0, 0 width 400 height 300 main
define button y
row 10
col 10
caption 'Click me!'
action drawtest()
end button
end window
x.center
x.activate
Return
function drawtest
local hBitMap, hDC, BTStruct
hBitMap := BT_BitmapCreateNew ( 800, 600, { 255,255,255 } )
hDC := BT_CreateDC ( hBitmap, BT_HDC_BITMAP, @BTstruct)
// connent following line and see the difference!
BT_DrawText (hDC, 10, 100, 'This is the text!', 'Arial', 12, { 0, 0, 0 }, { 255, 255, 255 }, BT_TEXT_OPAQUE, BT_TEXT_CENTER )
BT_DrawRectangle (hDC, 100, 150, 200, 300, { 0, 0, 0 }, 2 )
BT_DrawTextEx (hDC, 100, 150, 200, 300, 'This is the text!', 'Arial', 12, { 0, 0, 0 }, { 255, 255, 255 }, BT_TEXT_OPAQUE, BT_TEXT_LEFT )
BT_DeleteDC( BTStruct )
BT_BitmapSaveFile ( hBitmap, 'new.bmp', BT_FILEFORMAT_BMP )
BT_BitmapRelease ( hBitmap )
return nilCode: Select all
BT_DrawText (hDC, 10, 100, 'This is the text!', 'Arial', 12, { 0, 0, 0 }, { 255, 255, 255 }, BT_TEXT_OPAQUE, BT_TEXT_CENTER )