【已解决】求教au3如何调用函数GdipDrawDriverString在绘制字符串时控制行间距和字符
本帖最后由 zghwelcome 于 2024-4-8 20:10 编辑_GDIPlus_GraphicsDrawString 函数绘制字符串时无法控制行间距及字符间距，搜索后需要调用 GdipDrawDriverString 实现，下面是一段VB代码，求大佬转换成au3，感谢！
<DllImport("Gdiplus.dll", CharSet:=CharSet.Unicode)>
Friend Shared Function GdipDrawDriverString(ByVal graphics As IntPtr, _
ByVal text As String, _
ByVal length As Integer,_
ByVal font As IntPtr,_
ByVal brush As IntPtr, _
ByVal positions() As PointF, _
ByVal flags As Integer, _
ByVal matrix As IntPtr) As Integer
End Function
Private Shared Sub DrawDriverString(ByVal graphics As Graphics, _
ByVal text As String, ByVal font As Font,_
ByVal brush As Brush, ByVal positions() As PointF)
DrawDriverString(graphics, text, font, brush, positions, Nothing)
End Sub
Private Shared Sub DrawDriverString(ByVal G As Graphics, _
ByVal T As String, ByVal F As Font, _
ByVal B As Brush, ByVal P() As PointF, ByVal M As Matrix)
If (G Is Nothing) Then Throw New ArgumentNullException("graphics")
If (T Is Nothing) Then Throw New ArgumentNullException("text")
If (F Is Nothing) Then Throw New ArgumentNullException("font")
If (B Is Nothing) Then Throw New ArgumentNullException("brush")
If (P Is Nothing) Then Throw New ArgumentNullException("positions")
Dim Field As FieldInfo
Field = GetType(Graphics).GetField("nativeGraphics", BindingFlags.Instance Or BindingFlags.NonPublic)
Dim hGraphics As IntPtr = Field.GetValue(G)
Field = GetType(Font).GetField("nativeFont", BindingFlags.Instance Or BindingFlags.NonPublic)
Dim hFont As IntPtr = Field.GetValue(F)
Field = GetType(Brush).GetField("nativeBrush", BindingFlags.Instance Or BindingFlags.NonPublic)
Dim hBrush As IntPtr = Field.GetValue(B)
Dim hMatrix As IntPtr = IntPtr.Zero
If (Not M Is Nothing) Then
Field = GetType(Matrix).GetField("nativeMatrix", BindingFlags.Instance Or BindingFlags.NonPublic)
hMatrix = Field.GetValue(M)
End If
Dim result As Integer = GdipDrawDriverString(hGraphics, T, T.Length, hFont, hBrush, P, DriverStringOptions.CmapLookup, hMatrix)
End Sub
Private Enum DriverStringOptions
CmapLookup = 1
Vertical = 2
Advance = 4
LimitSubpixel = 8
End Enum
Public Sub Draw3(ByVal Text As String)
Clear()
Dim i As Integer, tP() As PointF
ReDim tP(Text.Length - 1)
For i = 0 To Text.Length - 1
tP(i).X = (i Mod 52) * 16 + 3
tP(i).Y = 3 + Int(i / 52) * mLineHeight + 12
Next
DrawDriverString(mG, Text, mFont, New SolidBrush(mForeColor), tP)
End Sub
上面vb代码 原网址 看不懂也不知道应用场景~ 感觉这单字坐标的搞法只适合等宽字体……不知道 _GDIPlus_FontFamilyGetLineSpacing 有没有启发
afan 发表于 2024-3-2 15:11
看不懂也不知道应用场景~ 感觉这单字坐标的搞法只适合等宽字体……不知道 _GDIPlus_FontFamilyGetLineSpa ...
就是想在图片绘制一段文字时，控制文字段落的行间距和字符间距 看明白了，暂时没时间写 haijie1223 发表于 2024-3-5 08:44
看明白了，暂时没时间写
静候大佬 zghwelcome 发表于 2024-3-5 16:16
静候大佬
差点都忘了你这个问题了。。。
#NoTrayIcon
#include <Winapi.au3>
#include <gdiplus.au3>
Global $hGUI = GUICreate("GdipDrawDriverString", 850, 550)
GUISetState()
_GDIPlus_Startup()
Global $hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI)
Global $hBrush = _GDIPlus_BrushCreateSolid(0xFF000000)
Global $hFamily = _GDIPlus_FontFamilyCreate("宋体")
Global $hFont = _GDIPlus_FontCreate($hFamily, 12, 2)
Global $Text = _
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Enum $CmapLookup = 1, $Vertical = 2, $Advance = 4, $LimitSubpixel = 8
Global $mLineHeight = 25;//调整行间距
Global $pBuffer = _WinAPI_CreateBuffer(8 * StringLen($Text))
For $i = 0 To StringLen($Text) - 1
Local $tP = DllStructCreate('float x;float y;', $pBuffer + $i * 8)
DllStructSetData($tP, 'x', Mod($i, 52) * 16 + 3)
DllStructSetData($tP, 'y', 3 + Int($i / 52) * $mLineHeight + 12)
Next
GdipDrawDriverString($hGraphic, $Text, StringLen($Text), $hFont, $hBrush, $pBuffer, $CmapLookup, Null)
Do
Sleep(50)
Until GUIGetMsg() = -3
_WinAPI_FreeMemory($pBuffer)
_GDIPlus_GraphicsDispose($hGraphic)
_GDIPlus_Shutdown()
Func GdipDrawDriverString($hGraphics, $sString, $length, $hFont, $hBrush, $tPointF, $flags, $matrix)
Local $aCall = DllCall($__g_hGDIPDll, "int", "GdipDrawDriverString", "handle", $hGraphics, "wstr", $sString, "int", $length, "handle", $hFont, "handle", $hBrush, "ptr", $tPointF, "int", $flags, "handle", $matrix);
If @error Then Return SetError(@error, @extended, False)
If $aCall Then Return SetError(10, $aCall, False)
Return True
EndFunc ;==>GdipDrawDriverString
haijie1223 发表于 2024-4-8 17:56
差点都忘了你这个问题了。。。
感谢大佬解答 :face (1):
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