A mon avis, redessiner est la meilleure solution...
Mais si tu veux l'éviter, tu peux utiliser l'API StretchBlt qui te feras une copie de ton dessin dont tu pourras modifier l'échelle à volonté.
Declare Function StretchBlt Lib "gdi32" Alias "StretchBlt" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, ByVal nSrcWidth As Long, ByVal nSrcHeight As Long, ByVal dwRop As Long) As Long
A+
HCath
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