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Editing: Form1.frm
VERSION 5.00 Begin VB.Form Form1 Caption = "Form1" ClientHeight = 3090 ClientLeft = 60 ClientTop = 450 ClientWidth = 4680 LinkTopic = "Form1" ScaleHeight = 3090 ScaleWidth = 4680 StartUpPosition = 3 '�t�ιw�]�� Begin VB.CommandButton Command1 Caption = "Command1" Height = 1185 Left = 960 TabIndex = 0 Top = 870 Width = 2595 End End Attribute VB_Name = "Form1" Attribute VB_GlobalNameSpace = False Attribute VB_Creatable = False Attribute VB_PredeclaredId = True Attribute VB_Exposed = False Private Sub Command1_Click() Dim page_title As String Dim pdf As Long Dim font As Long Dim page As Long Dim fname As String * 256 Dim samp_text As String Dim samp_text2 As String Dim tw As Single Dim fsize As Single Dim i As Long Dim length As Long Dim angle1 As Single Dim angle2 As Single Dim rad1 As Single Dim rad2 As Single Dim r As Single Dim g As Single Dim b As Single Dim ypos As Single page_title = "Text Demo" samp_text = "abcdefgABCDEFG123!#$%&+-@?" samp_text2 = "The quick brown fox jumps over the lazy dog." fname = App.Path & IIf(Right(App.Path, 1) = "\", "", "\") & "text_demo.pdf" pdf = HPDF_New(AddressOf error_handler, ByVal vbNullString) If pdf = 0 Then 'printf ("error: cannot create PdfDoc object\n") Exit Sub End If '/* set compression mode */ Call HPDF_SetCompressionMode(pdf, HPDF_COMP_ALL) '/* create default-font */ sTemp1 = "Helvetica" '& Chr(0) font = HPDF_GetFont(pdf, ByVal sTemp1, ByVal vbNullString) 'Dim stemp As string 'stemp = HPDF_LoadTTFontFromFile(pdf, ByVal "c:\windows\fonts\arial.ttf", HPDF_TRUE) '/* add a new page object. */ page = HPDF_AddPage(pdf) '/* draw grid to the page */ 'Call print_grid(pdf, page) '/* print the lines of the page. Call HPDF_Page_SetLineWidth(page, 1) Call HPDF_Page_Rectangle(page, 50, 50, HPDF_Page_GetWidth(page) - 100, HPDF_Page_GetHeight(page) - 110) Call HPDF_Page_Stroke(page) '/* print the title of the page (with positioning center). */ Call HPDF_Page_SetFontAndSize(page, font, 24) tw = HPDF_Page_TextWidth(page, ByVal page_title) Call HPDF_Page_BeginText(page) Call HPDF_Page_TextOut(page, (HPDF_Page_GetWidth(page) - tw) / 2, HPDF_Page_GetHeight(page) - 50, ByVal page_title) Call HPDF_Page_EndText(page) Call HPDF_Page_BeginText(page) Call HPDF_Page_MoveTextPos(page, 60, HPDF_Page_GetHeight(page) - 60) '/* ' * font size ' */ Dim buf As String * 50 fsize = 8 Do While (fsize < 60) '/* set style and size of font. */ Call HPDF_Page_SetFontAndSize(page, font, fsize) '/* set the position of the text. */ Call HPDF_Page_MoveTextPos(page, 0, -5 - fsize) '/* measure the number of characters which included in the page. */ 'strcpy(buf, samp_text) samp_text = buf length = HPDF_Page_MeasureText(page, samp_text, HPDF_Page_GetWidth(page) - 120, HPDF_FALSE, 0&) '/* truncate the text. */ 'buf(length) = &H0 Call HPDF_Page_ShowText(page, buf) '/* print the description. */ Call HPDF_Page_MoveTextPos(page, 0, -10) Call HPDF_Page_SetFontAndSize(page, font, 8) buf = "Fontsize=" & Format(fsize, "0.0") Call HPDF_Page_ShowText(page, buf) fsize = fsize * 1.5 Loop '/* ' * font color ' */ Call HPDF_Page_SetFontAndSize(page, font, 8) Call HPDF_Page_MoveTextPos(page, 0, -30) Call HPDF_Page_ShowText(page, "Font color") Call HPDF_Page_SetFontAndSize(page, font, 18) Call HPDF_Page_MoveTextPos(page, 0, -20) length = Len(samp_text) Dim buf1 As String * 2 For i = 0 To length r = i / length g = 1 - (i / length) CopyMemory ByVal buf1, VarPtr(samp_text) + i, 1 'buf[1] = 0x00 Call HPDF_Page_SetRGBFill(page, r, g, 0#) Call HPDF_Page_ShowText(page, buf1) Next i Call HPDF_Page_MoveTextPos(page, 0, -25) For i = 0 To length r = i / length b = 1 - (i / length) CopyMemory ByVal buf1, VarPtr(samp_text) + i, 1 'buf[1] = 0x00 Call HPDF_Page_SetRGBFill(page, r, 0#, b) Call HPDF_Page_ShowText(page, buf1) Next i Call HPDF_Page_MoveTextPos(page, 0, -25) For i = 0 To length b = i / length g = 1 - (i / length) CopyMemory ByVal buf1, VarPtr(samp_text) + i, 1 'buf[1] = 0x00 Call HPDF_Page_SetRGBFill(page, 0#, g, b) Call HPDF_Page_ShowText(page, buf) Next i HPDF_Page_EndText (page) ypos = 450 '/* ' * Font rendering mode ' */ Call HPDF_Page_SetFontAndSize(page, font, 32) Call HPDF_Page_SetRGBFill(page, 0.5, 0.5, 0#) Call HPDF_Page_SetLineWidth(page, 1.5) '/* PDF_FILL */ Call show_description(page, 60, ypos, "RenderingMode=PDF_FILL") Call HPDF_Page_SetTextRenderingMode(page, HPDF_FILL) Call HPDF_Page_BeginText(page) Call HPDF_Page_TextOut(page, 60, ypos, "ABCabc123") Call HPDF_Page_EndText(page) '/* PDF_STROKE */ Call show_description(page, 60, ypos - 50, "RenderingMode=PDF_STROKE") Call HPDF_Page_SetTextRenderingMode(page, HPDF_STROKE) Call HPDF_Page_BeginText(page) Call HPDF_Page_TextOut(page, 60, ypos - 50, "ABCabc123") Call HPDF_Page_EndText(page) '/* PDF_FILL_THEN_STROKE */ Call show_description(page, 60, ypos - 100, "RenderingMode=PDF_FILL_THEN_STROKE") Call HPDF_Page_SetTextRenderingMode(page, HPDF_FILL_THEN_STROKE) Call HPDF_Page_BeginText(page) Call HPDF_Page_TextOut(page, 60, ypos - 100, "ABCabc123") Call HPDF_Page_EndText(page) '/* PDF_FILL_CLIPPING */ Call show_description(page, 60, ypos - 150, "RenderingMode=PDF_FILL_CLIPPING") Call HPDF_Page_GSave(page) Call HPDF_Page_SetTextRenderingMode(page, HPDF_FILL_CLIPPING) Call HPDF_Page_BeginText(page) Call HPDF_Page_TextOut(page, 60, ypos - 150, "ABCabc123") Call HPDF_Page_EndText(page) Call show_stripe_pattern(page, 60, ypos - 150) Call HPDF_Page_GRestore(page) '/* PDF_STROKE_CLIPPING */ Call show_description(page, 60, ypos - 200, "RenderingMode=PDF_STROKE_CLIPPING") Call HPDF_Page_GSave(page) Call HPDF_Page_SetTextRenderingMode(page, HPDF_STROKE_CLIPPING) Call HPDF_Page_BeginText(page) Call HPDF_Page_TextOut(page, 60, ypos - 200, "ABCabc123") Call HPDF_Page_EndText(page) Call show_stripe_pattern(page, 60, ypos - 200) Call HPDF_Page_GRestore(page) '/* PDF_FILL_STROKE_CLIPPING */ Call show_description(page, 60, ypos - 250, "RenderingMode=PDF_FILL_STROKE_CLIPPING") Call HPDF_Page_GSave(page) Call HPDF_Page_SetTextRenderingMode(page, HPDF_FILL_STROKE_CLIPPING) Call HPDF_Page_BeginText(page) Call HPDF_Page_TextOut(page, 60, ypos - 250, "ABCabc123") Call HPDF_Page_EndText(page) Call show_stripe_pattern(page, 60, ypos - 250) Call HPDF_Page_GRestore(page) '/* Reset text attributes */ Call HPDF_Page_SetTextRenderingMode(page, HPDF_FILL) Call HPDF_Page_SetRGBFill(page, 0, 0, 0) Call HPDF_Page_SetFontAndSize(page, font, 30) '/* ' * Rotating text ' */ angle1 = 30 '/* A rotation of 30 degrees. */ rad1 = angle1 / 180 * 3.141592 '/* Calcurate the radian value. */ Call show_description(page, 320, ypos - 60, "Rotating text") Call HPDF_Page_BeginText(page) Call HPDF_Page_SetTextMatrix(page, Cos(rad1), Sin(rad1), -Sin(rad1), Cos(rad1), 330, ypos - 60) Call HPDF_Page_ShowText(page, "ABCabc123") Call HPDF_Page_EndText(page) '/* ' * Skewing text. ' */ Call show_description(page, 320, ypos - 120, "Skewing text") Call HPDF_Page_BeginText(page) angle1 = 10 angle2 = 20 rad1 = angle1 / 180 * 3.141592 rad2 = angle2 / 180 * 3.141592 Call HPDF_Page_SetTextMatrix(page, 1, Tan(rad1), Tan(rad2), 1, 320, ypos - 120) Call HPDF_Page_ShowText(page, "ABCabc123") Call HPDF_Page_EndText(page) '/* ' * scaling text (X direction) ' */ Call show_description(page, 320, ypos - 175, "Scaling text (X direction)") Call HPDF_Page_BeginText(page) Call HPDF_Page_SetTextMatrix(page, 1.5, 0, 0, 1, 320, ypos - 175) Call HPDF_Page_ShowText(page, "ABCabc12") Call HPDF_Page_EndText(page) '/* ' * scaling text (Y direction) ' */ Call show_description(page, 320, ypos - 250, "Scaling text (Y direction)") Call HPDF_Page_BeginText(page) Call HPDF_Page_SetTextMatrix(page, 1, 0, 0, 2, 320, ypos - 250) Call HPDF_Page_ShowText(page, "ABCabc123") Call HPDF_Page_EndText(page) '/* ' * char spacing, word spacing ' */ Call show_description(page, 60, 140, "char-spacing 0") Call show_description(page, 60, 100, "char-spacing 1.5") Call show_description(page, 60, 60, "char-spacing 1.5, word-spacing 2.5") Call HPDF_Page_SetFontAndSize(page, font, 20) Call HPDF_Page_SetRGBFill(page, 0.1, 0.3, 0.1) '/* char-spacing 0 */ Call HPDF_Page_BeginText(page) Call HPDF_Page_TextOut(page, 60, 140, ByVal samp_text2) Call HPDF_Page_EndText(page) '/* char-spacing 1.5 */ Call HPDF_Page_SetCharSpace(page, 1.5) Call HPDF_Page_BeginText(page) Call HPDF_Page_TextOut(page, 60, 100, ByVal samp_text2) Call HPDF_Page_EndText(page) '/* char-spacing 1.5, word-spacing 3.5 */ Call HPDF_Page_SetWordSpace(page, 2.5) Call HPDF_Page_BeginText(page) Call HPDF_Page_TextOut(page, 60, 60, ByVal samp_text2) Call HPDF_Page_EndText(page) '/* save the document to a file */ Call HPDF_SaveToFile(pdf, ByVal fname) '/* clean up */ Call HPDF_Free(pdf) End Sub Public Function show_description(page As Long, x As Single, y As Single, ByVal text As String) As Long Dim fsize As Single Dim font As Long Dim c As HPDF_RGBColor fsize = HPDF_Page_GetCurrentFontSize(page) font = HPDF_Page_GetCurrentFont(page) c = HPDF_Page_GetRGBFill(page) Call HPDF_Page_BeginText(page) Call HPDF_Page_SetRGBFill(page, 0, 0, 0) Call HPDF_Page_SetTextRenderingMode(page, HPDF_FILL) Call HPDF_Page_SetFontAndSize(page, font, 10) Call HPDF_Page_TextOut(page, x, y - 12, ByVal text) Call HPDF_Page_EndText(page) Call HPDF_Page_SetFontAndSize(page, font, fsize) Call HPDF_Page_SetRGBFill(page, c.r, c.g, c.b) End Function Public Function show_stripe_pattern(ByVal page As Long, ByVal x As Single, ByVal y As Single) Dim iy As Long Do While (iy < 50) Call HPDF_Page_SetRGBStroke(page, 0#, 0#, 0.5) Call HPDF_Page_SetLineWidth(page, 1) Call HPDF_Page_MoveTo(page, x, y + iy) Call HPDF_Page_LineTo(page, x + HPDF_Page_TextWidth(page, "ABCabc123"), y + iy) Call HPDF_Page_Stroke(page) iy = iy + 3 Loop Call HPDF_Page_SetLineWidth(page, 2.5) End Function
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