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- XXXXRRRReeeeaaaaddddBBBBiiiittttmmmmaaaappppFFFFiiiilllleeee((((3333XXXX11111111))))XXXX VVVVeeeerrrrssssiiiioooonnnn 11111111 ((((RRRReeeelllleeeeaaaasssseeee 6666....3333))))XXXXRRRReeeeaaaaddddBBBBiiiittttmmmmaaaappppFFFFiiiilllleeee((((3333XXXX11111111))))
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- NNNNAAAAMMMMEEEE
- XReadBitmapFile, XReadBitmapFileData, XWriteBitmapFile,
- XCreatePixmapFromBitmapData, XCreateBitmapFromData -
- manipulate bitmaps
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- SSSSYYYYNNNNTTTTAAAAXXXX
- int XReadBitmapFile(_d_i_s_p_l_a_y, _d, _f_i_l_e_n_a_m_e, _w_i_d_t_h__r_e_t_u_r_n,
- _h_e_i_g_h_t__r_e_t_u_r_n, _b_i_t_m_a_p__r_e_t_u_r_n, _x__h_o_t__r_e_t_u_r_n,
- _y__h_o_t__r_e_t_u_r_n)
- Display *_d_i_s_p_l_a_y;
- Drawable _d;
- char *_f_i_l_e_n_a_m_e;
- unsigned int *_w_i_d_t_h__r_e_t_u_r_n, *_h_e_i_g_h_t__r_e_t_u_r_n;
- Pixmap *_b_i_t_m_a_p__r_e_t_u_r_n;
- int *_x__h_o_t__r_e_t_u_r_n, *_y__h_o_t__r_e_t_u_r_n;
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- int XReadBitmapFileData(_f_i_l_e_n_a_m_e, _w_i_d_t_h__r_e_t_u_r_n,
- _h_e_i_g_h_t__r_e_t_u_r_n, _d_a_t_a__r_e_t_u_r_n, _x__h_o_t__r_e_t_u_r_n, _y__h_o_t__r_e_t_u_r_n)
- char *_f_i_l_e_n_a_m_e;
- unsigned int *_w_i_d_t_h__r_e_t_u_r_n, *_h_e_i_g_h_t__r_e_t_u_r_n;
- unsigned char *_d_a_t_a__r_e_t_u_r_n;
- int *_x__h_o_t__r_e_t_u_r_n, *_y__h_o_t__r_e_t_u_r_n;
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- int XWriteBitmapFile(_d_i_s_p_l_a_y, _f_i_l_e_n_a_m_e, _b_i_t_m_a_p, _w_i_d_t_h,
- _h_e_i_g_h_t, _x__h_o_t, _y__h_o_t)
- Display *_d_i_s_p_l_a_y;
- char *_f_i_l_e_n_a_m_e;
- Pixmap _b_i_t_m_a_p;
- unsigned int _w_i_d_t_h, _h_e_i_g_h_t;
- int _x__h_o_t, _y__h_o_t;
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- Pixmap XCreatePixmapFromBitmapData(_d_i_s_p_l_a_y, _d, _d_a_t_a, _w_i_d_t_h,
- _h_e_i_g_h_t, _f_g, _b_g, _d_e_p_t_h)
- Display *_d_i_s_p_l_a_y;
- Drawable _d;
- char *_d_a_t_a;
- unsigned int _w_i_d_t_h, _h_e_i_g_h_t;
- unsigned long _f_g, _b_g;
- unsigned int _d_e_p_t_h;
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- Pixmap XCreateBitmapFromData(_d_i_s_p_l_a_y, _d, _d_a_t_a, _w_i_d_t_h,
- _h_e_i_g_h_t)
- Display *_d_i_s_p_l_a_y;
- Drawable _d;
- char *_d_a_t_a;
- unsigned int _w_i_d_t_h, _h_e_i_g_h_t;
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- AAAARRRRGGGGUUUUMMMMEEEENNNNTTTTSSSS
- _b_i_t_m_a_p Specifies the bitmap.
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- _b_i_t_m_a_p__r_e_t_u_r_n
- Returns the bitmap that is created.
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- Page 1 (printed 4/30/98)
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- _d Specifies the drawable that indicates the screen.
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- _d_a_t_a Specifies the data in bitmap format.
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- _d_a_t_a Specifies the location of the bitmap data.
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- _d_a_t_a__r_e_t_u_r_n
- Returns the bitmap data.
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- _d_e_p_t_h Specifies the depth of the pixmap.
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- _d_i_s_p_l_a_y Specifies the connection to the X server.
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- _f_g
- _b_g Specify the foreground and background pixel values
- to use.
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- _f_i_l_e_n_a_m_e Specifies the file name to use. The format of the
- file name is operating-system dependent.
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- _w_i_d_t_h
- _h_e_i_g_h_t Specify the width and height.
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- _w_i_d_t_h__r_e_t_u_r_n
- _h_e_i_g_h_t__r_e_t_u_r_n
- Return the width and height values of the read in
- bitmap file.
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- _x__h_o_t
- _y__h_o_t Specify where to place the hotspot coordinates (or
- -1,-1 if none are present) in the file.
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- _x__h_o_t__r_e_t_u_r_n
- _y__h_o_t__r_e_t_u_r_n
- Return the hotspot coordinates.
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- The _X_R_e_a_d_B_i_t_m_a_p_F_i_l_e function reads in a file containing a
- bitmap. The file is parsed in the encoding of the current
- locale. The ability to read other than the standard format
- is implementation-dependent. If the file cannot be opened,
- _X_R_e_a_d_B_i_t_m_a_p_F_i_l_e returns _B_i_t_m_a_p_O_p_e_n_F_a_i_l_e_d. If the file can
- be opened but does not contain valid bitmap data, it returns
- _B_i_t_m_a_p_F_i_l_e_I_n_v_a_l_i_d. If insufficient working storage is
- allocated, it returns _B_i_t_m_a_p_N_o_M_e_m_o_r_y. If the file is
- readable and valid, it returns _B_i_t_m_a_p_S_u_c_c_e_s_s.
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- _X_R_e_a_d_B_i_t_m_a_p_F_i_l_e returns the bitmap's height and width, as
- read from the file, to width_return and height_return. It
- then creates a pixmap of the appropriate size, reads the
- bitmap data from the file into the pixmap, and assigns the
- pixmap to the caller's variable bitmap. The caller must free
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- Page 2 (printed 4/30/98)
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- the bitmap using _X_F_r_e_e_P_i_x_m_a_p when finished. If _n_a_m_e_x_hot
- and _n_a_m_e_y_hot exist, _X_R_e_a_d_B_i_t_m_a_p_F_i_l_e returns them to
- x_hot_return and y_hot_return; otherwise, it returns -1,-1.
-
- _X_R_e_a_d_B_i_t_m_a_p_F_i_l_e can generate _B_a_d_A_l_l_o_c and _B_a_d_D_r_a_w_a_b_l_e
- errors.
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- The _X_R_e_a_d_B_i_t_m_a_p_F_i_l_e_D_a_t_a function reads in a file containing
- a bitmap, in the same manner as _X_R_e_a_d_B_i_t_m_a_p_F_i_l_e, but returns
- the data directly rather than creating a pixmap in the
- server. The bitmap data is returned in data_return; the
- client must free this storage when finished with it by
- calling _X_F_r_e_e. The status and other return values are the
- same as for _X_R_e_a_d_B_i_t_m_a_p_F_i_l_e.
-
- The _X_W_r_i_t_e_B_i_t_m_a_p_F_i_l_e function writes a bitmap out to a file
- in the X Version 11 format. The name used in the output
- file is derived from the file name by deleting the directory
- prefix. The file is written in the encoding of the current
- locale. If the file cannot be opened for writing, it
- returns _B_i_t_m_a_p_O_p_e_n_F_a_i_l_e_d. If insufficient memory is
- allocated, _X_W_r_i_t_e_B_i_t_m_a_p_F_i_l_e returns _B_i_t_m_a_p_N_o_M_e_m_o_r_y;
- otherwise, on no error, it returns _B_i_t_m_a_p_S_u_c_c_e_s_s. If x_hot
- and y_hot are not -1, -1, _X_W_r_i_t_e_B_i_t_m_a_p_F_i_l_e writes them out
- as the hotspot coordinates for the bitmap.
-
- _X_W_r_i_t_e_B_i_t_m_a_p_F_i_l_e can generate _B_a_d_D_r_a_w_a_b_l_e and _B_a_d_M_a_t_c_h
- errors.
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- The _X_C_r_e_a_t_e_P_i_x_m_a_p_F_r_o_m_B_i_t_m_a_p_D_a_t_a function creates a pixmap of
- the given depth and then does a bitmap-format _X_P_u_t_I_m_a_g_e of
- the data into it. The depth must be supported by the screen
- of the specified drawable, or a _B_a_d_M_a_t_c_h error results.
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- _X_C_r_e_a_t_e_P_i_x_m_a_p_F_r_o_m_B_i_t_m_a_p_D_a_t_a can generate _B_a_d_A_l_l_o_c and
- _B_a_d_M_a_t_c_h errors.
-
- The _X_C_r_e_a_t_e_B_i_t_m_a_p_F_r_o_m_D_a_t_a function allows you to include in
- your C program (using #_i_n_c_l_u_d_e) a bitmap file that was
- written out by _X_W_r_i_t_e_B_i_t_m_a_p_F_i_l_e (X version 11 format only)
- without reading in the bitmap file. The following example
- creates a gray bitmap:
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- #include "gray.bitmap"
- Pixmap bitmap;
- bitmap = XCreateBitmapFromData(display, window, gray_bits, gray_width, gray_height);
-
- If insufficient working storage was allocated,
- _X_C_r_e_a_t_e_B_i_t_m_a_p_F_r_o_m_D_a_t_a returns _N_o_n_e. It is your
- responsibility to free the bitmap using _X_F_r_e_e_P_i_x_m_a_p when
- finished.
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- Page 3 (printed 4/30/98)
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- XXXXRRRReeeeaaaaddddBBBBiiiittttmmmmaaaappppFFFFiiiilllleeee((((3333XXXX11111111))))XXXX VVVVeeeerrrrssssiiiioooonnnn 11111111 ((((RRRReeeelllleeeeaaaasssseeee 6666....3333))))XXXXRRRReeeeaaaaddddBBBBiiiittttmmmmaaaappppFFFFiiiilllleeee((((3333XXXX11111111))))
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- _X_C_r_e_a_t_e_B_i_t_m_a_p_F_r_o_m_D_a_t_a can generate a _B_a_d_A_l_l_o_c error.
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- DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS
- _B_a_d_A_l_l_o_c The server failed to allocate the requested
- resource or server memory.
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- _B_a_d_D_r_a_w_a_b_l_e
- A value for a Drawable argument does not name a
- defined Window or Pixmap.
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- _B_a_d_M_a_t_c_h An _I_n_p_u_t_O_n_l_y window is used as a Drawable.
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- XCreatePixmap(3X11), XPutImage(3X11)
- _X_l_i_b - _C _L_a_n_g_u_a_g_e _X _I_n_t_e_r_f_a_c_e
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- Page 4 (printed 4/30/98)
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