Microsoft Access, Office/VBA, VB6 Modules royalty-free source code library

Microsoft Access Modules royalty-free source code library

Microsoft Access VBA and VB6 Module Library

Free trial of Total Visual SourceBook for Microsoft Access, Office, VB6 and VBA

Class: GDIRoundRect in Category Microsoft Visual Basic 6 : Graphics from Total Visual SourceBook

Class that draws a rounded rectangle, using Windows API GDI calls in VB6.

A rounded rectangle is a region whose location is determined by the Left, Top, Right and Bottom properties of this class. The angles of the corners of the rectangle are always drawn at 90 degrees. The corners of the rectangle are rounded off based on the value of the Height and Width properties. The routines in this class allow you to draw the rounded rectangle by calling the Windows API RoundRect function.

Procedure List

Procedure Name	Type	Description
(Declarations)	Declarations	Declarations and private variables for the CGDIRoundRect class.
BorderColor	Property	Get the current value of the color used to draw the rounded rectangle.
BorderWidth	Property	Get the current value of the BorderWidth used to draw the rounded rectangle.
Bottom	Property	Get the Bottom location of the rounded rectangle.
BrushStyle	Property	Get the current style used to fill the rounded rectangle. The value of this property should be set to one of the Windows API Brush Style constants (BS_SOLID, BS_HOLLOW, BS_HATCHED etc.), which are exposed as EnumRoundRectBrushStyles constants in this class.
FillColor	Property	Get the current value of the color used to fill the rounded rectangle.
ForegroundMixMode	Property	Get the current value of the ForegroundMixMode property, which defines how colors from the pen and the colors in the existing image are to be combined. The value should be one of the enumerated raster op values exposed in EnumRoundRectRasterOps, or the equivalent VBA/VB6 "DrawModeConstants", such as vbCopyPen, vbXorPen etc. See "Drawing Constants" in the VBA/VB6 on-line help.
HatchStyle	Property	Get the current value of the style used to fill the rounded rectangle when the BrushStyle is set to hatched. The value of this property should be set to one of the Windows API Hatch Style constants (HS_HORIZONTAL, HS_BDIAGONAL, HS_CROSS etc.), which are exposed as EnumRoundRectHatchStyles constants in this class.
Height	Property	Get the height of the ellipse used to draw rounded corners of the rectangle. This value controls how "rounded" the rounded corners of the rectangle will be (i.e. where the ellipse used to draw the corner is located).
Left	Property	Get the Left location of the rounded rectangle.
PenStyle	Property	Get the value of the style used to draw the rounded rectangle. The value of this property should be set to one of the Windows API Pen Style constants (PS_SOLID, PS_DASHDOT etc.), which are exposed as EnumRoundRectPenStyles constants in this class.
Right	Property	Get the Right location of the rounded rectangle.
Top	Property	Get the Top location of the rounded rectangle.
Width	Property	Get the width of the ellipse used to draw rounded corners of the rectangle. This value controls how "rounded" the rounded corners of the rectangle will be (i.e. where the ellipse used to draw the corner is located).
Class_Initialize	Initialize	Set initial values to defaults which may be overridden with property settings.
Draw3DRoundRect	Method	Draws two rounded rectangles on a selected device so that they create a 3D effect. This method ignores the regular BorderColor and FillStyle properties, and instead uses the colors which are passed to it to draw a 3D rounded rectangle.
DrawRoundRect	Method	Draw a rounded rectangle on a selected device.
TranslateVBColor	Private	Translates VBA/VB6 color constants for system colors into GDI equivalents. VBA/VB6 color constants, such as vbRed, vbBlue, or values returned using the QBColor() or RGB() functions, can be used directly for the color values used with Windows API calls. However, the VBA/VB6 color constants for system colors (vbButtonFace, vb3DShadow etc.) do not map correctly to those expected by Windows. This function accepts either form of constant and translates the value, if necessary, into the equivalent value expected by the Windows GDI subsystem.

Example Code for Using Class: GDIRoundRect

' Example of the CGDIRoundRect class
'
' To try this example, do the following:
' 1. Create a new form
' 2. Paste all the code from this example to the new form's module
' 3. Run the form and click on the background. A rounded rectangle is
'    drawn on the form around the location of the click. A 3D rounded
'    rectangle is drawn around the borders of the form

Private Sub Form_MouseUp(Button As Integer, Shift As Integer, x As Single, Y As Single)

  Dim GDIRoundRect As CGDIRoundRect
  Set GDIRoundRect = New CGDIRoundRect

  With GDIRoundRect
    .Left = ScaleX(X, vbTwips, vbPixels) - 100
    .Top = ScaleY(Y, vbTwips, vbPixels) - 50
    .Right = ScaleX(X, vbTwips, vbPixels) + 100
    .Bottom = ScaleY(Y, vbTwips, vbPixels) + 50
    .Width = 50
    .Height = 50

    .BorderColor = vbBlue
    .BorderWidth = 5
    .FillColor = vbYellow

    ' Draw the rounded rectangle
    .DrawRoundRect Me.hDC

    ' Draw the 3D rounded rectangle
    .Left = 10
    .Top = 10
    .Right = ScaleX(Me.ScaleWidth, vbTwips, vbPixels) - 10
    .Bottom = ScaleY(Me.ScaleHeight, vbTwips, vbPixels) - 10
    .Width = 50
    .Height = 50

    .BorderWidth = 1
    .Draw3DRoundRect Me.hDC, vb3DShadow, vb3DHighlight

  End With

End Sub

Overview of Total Visual SourceBook

The source code in Total Visual Sourcebook includes modules and classes for Microsoft Access, Visual Basic 6 (VB6), and Visual Basic for Applications (VBA) developers. Easily add this professionally written, tested, and documented royalty-free code into your applications to simplify your application development efforts.

Total Visual SourceBook is written for the needs of a developer using a source code library covering the many challenges you face. Countless developers over the years have told us they learned some or much of their development skills and tricks from our code. You can too!