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Widest number in arial font11/10/2022 ![]() ![]() It seems to work fine, and with the string limited to numeric characters, it's easy to supply a test string for measurement. For this immediate problem, I can use GetTextExtentPoint32(). I was going to offer user selectable fonts so that the most readable could be selected. The drawing is labeled with numeric values which can become hard to read when the drawing is scaled down. The program generates a drawing that can vary in size depending on parameters entered by the user. Maybe it counts the expanded tab character, though that sounds doubtful.I was hoping to use the max width value to calculate the largest size for any particular font that would fit in my allotted fields. My guess is that this value is actually correct, although I couldn't find which character has this width when looping through the character set and using GetTextExtentPoint32(). Ok, I couldn't find the explanation, but I did some experimenting with Arial and got the same result using lfCharSet of 0, 1, and 255 (ANSI, DEFAULT, OEM). * test 2 italicized text height = 20 ave = 8 max = 27 */ Sprintf(intstr, "%d", tm.tmMaxCharWidth) TextOut(hDc, 0, 0, intstr, strlen(intstr)) Sprintf(intstr, "%d", tm.tmAveCharWidth) * test 1 normal text height = 20 ave = 8 max = 45 */ SelectObject(hDc, CreateFontIndirect(&lf)) ![]() Lf.lfPitchAndFamily = VARIABLE_PITCH | FF_SWISS Return DefWindowProc(hWnd, msg, wParam, lParam) LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) HWnd = CreateWindow("Main", "char width test", WS_OVERLAPPEDWINDOW,ĬW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL) Wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH) Wc.hCursor = LoadCursor(NULL, IDC_CROSS) Wc.hIcon = LoadIcon(NULL, IDI_APPLICATION) Int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) * Average and Maximum character widths */ Maybe it counts the expanded tab character, though that sounds doubtful. ![]() I remember having a similar problem with the tmMaxCharWidth a while ago, I'm having trouble remembering what I found out about it, I'll come back and post it if I find it. However if you bold the font ( lfWeight of 700 or more ), Window's will need to slightly increase the outline, the amount of which will be stored in tmOverhang. I believe it should increase, as the characters are sheared (skewed) horizontally.when italized.Īs far as I know, italicizing doesn't usually effect tmAveCharWidth ( at least for raster fonts ). The average widths seem to be reasonable in all cases except that the width does not increase when set to italic. I just tried using a fixed spaced font, "FixedSys", and the average and maximum widths were equal, as they should be. The width of the widest character in the font." This value does not include the overhang required for bold or italic characters. The average width of characters in the font (generally defined as the width of the letter x ). TmAveCharWidth and tmMaxCharWidth are defined as follows in the API reference: If I change the font to italic, I get 8 and 27, for tmAveCharWidth and tmMaxCharWidth, respectivively. I am getting values for the tmAveCharWidth and tmMaxCharWidth members of a TEXTMETRIC structure that don't seem to make sense.įor an "Arial" font created with logfont.lfHeight = 20, I am getting an average width of 8, but a maximum width of 45. ![]()
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